/20. Let r = u - g. Solve 5*v - 3*w - 3 = 5, v - r*w - 3 = 0 for v.
1
Let v(n) = -n**3 - n**2 - 2. Let r be v(-2). Solve -3*x - i = -r*i - 14, -x + 2*i = -13 for x.
3
Let t(a) = -a**2 + 5*a + 6. Let z be t(5). Suppose 1 - z = -y. Solve -m + 0 = h + 2, -3*m - y*h = 2 for m.
-4
Let s(i) = -i - 5. Let h be s(-6). Suppose -4*a - 10 = 2. Let n = h - a. Solve m - 2*d = 2*d - 1, n*d = 3*m + 3 for m.
-1
Let h = -19 - -24. Suppose -3*k = -h*k - v + 3, -3*k + 8 = -2*v. Solve 0*f = -4*f + 2*d - 10, 2*f + k*d + 14 = 0 for f.
-4
Let g(b) = b**2 - 4*b - 1. Let o(p) = -p**2 + 5*p + 2. Let x(v) = 3*g(v) + 4*o(v). Let q be x(7). Solve -4*u + 2*d = -0*d, 2*u - q = 4*d for u.
-2
Let h = -3 - -2. Let b = h + 8. Solve -23 = 2*f - b*f - i, -5 = f - 3*i for f.
4
Let v(w) = -w**2 - 8*w - 4. Let z = 10 - 16. Let t be v(z). Solve k + k = -b, -4*k = -t for b.
-4
Suppose -5*c + 0*c = -90. Solve 0 = -4*w + i + 14 + 4, 3*w - 3*i = c for w.
4
Suppose 0*x - 2*x = 0. Solve x = 4*p + 2*l - 16, 4*p - 5 = 4*l + 11 for p.
4
Suppose m = 6*m - 10. Let l(o) = -o**3 + 3*o**2 + 2*o - 4. Let y be l(3). Suppose y*q - 3 = 1. Solve -14 = m*c - q*w, -3*c - 2*w + 8 = -2*c for c.
-2
Let s(h) = h**3 + 12*h**2 - h - 9. Let b be s(-12). Solve b*u + l - 3 = 0, 3*u + 4*l - 4 + 1 = 0 for u.
1
Suppose 17 + 4 = -m + 5*i, 2*m - 3 = i. Solve -3*p - 5*h = -22, m*h - 7 - 17 = -4*p for p.
4
Suppose 0 = -4*s + a + 7 + 8, -50 = -5*s - 5*a. Solve 2*n + s*m - 11 = 4*m, -2*m + 10 = 0 for n.
3
Suppose 4*s = 2*l - 14, 39 = -5*s - 4*l + 2. Let q = s - -11. Let g be -9*((-5)/(-3) + -2). Solve 10 = -5*j, c - q = g*j - j for c.
2
Suppose 4*b = 4*o - 320, 265 = 3*o - 4*b + 6*b. Let u = o - 56. Solve 3*s - u = s - 5*d, 2*s + 4*d - 24 = 0 for s.
2
Let s(c) = -c**2 - 19*c - 18. Let b be s(-12). Suppose 2*d + d - b = 0. Solve 4*h + 14 + 9 = -3*q, -4*q = h + d for q.
-5
Suppose 0 = 4*z - o + 7 + 30, -5*o = 5*z + 40. Let h = z + 17. Suppose -g - 4 = -3*g. Solve h = 4*s, 5*y + g*s + 14 - 38 = 0 for y.
4
Let y be (8/10)/(4/10). Let x be y - (0/4 - 2). Solve 5*l = f - 20, -5*f = x*l + 7 + 9 for l.
-4
Let r(s) = -s**2 - 11*s - 10. Let y be r(-6). Solve i + 3*t = -10, 0*t + y = -4*t for i.
5
Suppose -8 = 2*v - 4*g, -3*g + 21 + 11 = 5*v. Suppose 5*x - 41 = -0*x - v*r, -r + 4 = 0. Solve 2*w = x*c - 9, 12 = -2*c + 4*c + 2*w for c.
3
Suppose 0 = j - s - 10, -2*j = -j + 4*s + 10. Solve 5*n - 2*x + 9 = -j, 0 = 4*n - 4*x + 12 for n.
-3
Let j(m) = -m**3 - 4*m**2 - 4*m + 1. Let s be j(-3). Let l = 12 - s. Suppose 4*t = 112 - l. Solve -4*z = -2*k + 5*k - t, -3*z = k - 17 for z.
5
Let l(q) = 3*q - 24. Let k be l(9). Solve 0*g - 2*d + 6 = 4*g, k*g - 2*d = 8 for g.
2
Let d be (-1)/((-15)/(-12))*-5. Let p be (-4)/(-3 + 11/d). Solve 2*z + 2 = -u, -z - 4*u = -1 + p for z.
1
Suppose -6*x - 30 = -7*x. Solve -r = 4*r - 5*p + x, 4 = -r - p for r.
-5
Let g = 21 + -14. Let s = 1 - -4. Solve 3*f = s*a - 9, 2*f - g = -5*a + 12 for a.
3
Suppose -f - 23 = 22. Let c be f/(-21) - 2/14. Solve -v + c*v - 4 = n, -2*v + 5*n + 8 = 0 for v.
4
Suppose -2*w + 5*w = -81. Let v be (-924)/(-27) - (-6)/w. Let a be 2/(-8) - v/(-8). Solve -a*x = 2*t, -t - 4*t + 18 = x for x.
-2
Let c(i) = -i - 4. Let l be c(-5). Suppose 5*b + 2*s - 49 = 0, 0 = b - 3*s - 2 - l. Solve 0 = -f - 4*m + b, 4*m - 8 = -0*m for f.
1
Suppose 2*x - 5 = -3. Let f be (-5)/3*-3 - x. Let n be 6/8 - (-17)/f. Solve -24 = n*g - q, -11 - 9 = 4*g - q for g.
-4
Let w be -3 - (-8)/(-10)*(-60)/8. Suppose -q = 3*q - 12. Solve -q*l + 11 = v - 0*l, w*l - 8 = -4*v for v.
-1
Let a = -94 + 98. Solve a*z + i + 3*i - 32 = 0, -17 = -4*z + i for z.
5
Let h(f) = -8*f + 3. Let d be h(0). Solve -l - 40 = -6*l + 5*s, d*l - s - 18 = 0 for l.
5
Suppose 6 = -6*n + 9*n. Solve 4*l - 7 = v, l - n*l = 5*v - 28 for v.
5
Suppose t + 0*r + r = 2, -2*r - 20 = -4*t. Suppose -t*s = -16, 3*g - 14 = -2*g - s. Solve 10 = -6*u + g*u - c, 4*u + 6 = c for u.
-2
Let s be (12/6)/((-2)/(-2)). Suppose 0 = -2*y - 2*f + 4, 0*y = s*y - 3*f + 6. Solve 3*h + 5*k - 29 = y, 3 = -h + 2*k - 2 for h.
3
Let v(h) = -4*h + 3*h + 12*h - 4*h. Let o be v(2). Solve i + o = 5*z, -4*i = -i - 3 for z.
3
Suppose -3*r = 65 - 125. Solve -5*m = f + r, 2*f + 0*m + 4 = 2*m for f.
-5
Suppose -4*c + 4*t - 5 = 3, 2*t - 10 = -c. Solve -i + 0*q + c*q = -8, q = 4*i + 3 for i.
-2
Let t be (-14)/91 - (-2)/13. Solve 2*r + 17 = -3*z - t*r, 17 = z - 5*r for z.
-3
Let q(k) = -k**3 + 8*k**2 - 9*k + 9. Let s be q(7). Let w be ((-5)/2)/s*0. Let t = w - 0. Solve t = -5*u + 20, -3*j + 5*j + 12 = u for j.
-4
Suppose 7*f - 3 = 4*f. Solve -2*a = 2*r - 4, 2*r - f - 1 = -4*a for r.
3
Suppose 3*c + 44 = 7*c. Suppose -6*n + 15 = -c*n. Let a be n*(-2)/9*48. Solve 3*d - 34 = -5*x, 2*d = -4*x - 6 + a for d.
3
Suppose 4*u - 2*u + 114 = 4*f, 4*u + 138 = 5*f. Suppose -f = -2*z - 6. Let t(w) = -10*w - 1. Let b be t(-2). Solve 4*h - b = 3*c, -h = h - 4*c - z for h.
4
Let p = -5 - -8. Let n be 2 - (-8)/(-6)*p. Let u be 0 - (-1 + 3 + n). Solve 2*o + 5*y = 2, -3*y + u = 2*o + 2 for o.
-4
Let n(b) = -b**2 - 7*b - 5. Let p be n(-5). Let q = 115 - 75. Let w = -58 + 60. Solve j + q = p*r - 4*j, 0 = -w*r + 3*j + 21 for r.
3
Suppose -3*q + 5*q - 32 = 0. Let a be 0 - (-3 + 2 + -2). Let b be (-18)/15*(-5)/a. Solve 2*v - 18 = -i - 6, b*v - q = -2*i for v.
4
Suppose -4*s + 4 = 20. Let g be (s/1)/(0 - 2). Solve 0*h + 8 = o - 4*h, -o + g*h + 6 = 0 for o.
4
Let z = 6 - 4. Let l(n) = 4*n**2 + 3. Let y(f) = 3*f**2 + f + 2. Let r(j) = -2*l(j) + 3*y(j). Let p be r(-5). Solve -2*h + 5*h + z*m = p, 5*m = 10 for h.
2
Suppose 41 = 11*v - 3. Solve o = -v*t + 8, 5*o - 12 = t + 7 for o.
4
Let t be ((-3)/(-6))/((-2)/(-64)). Suppose -19*w = -t*w. Solve 3*i + 17 = -w*h - 2*h, 3*h = i + 2 for i.
-5
Suppose -28 + 1 = -3*s. Solve f - l = 4*f - 5, -f - 3*l - s = 0 for f.
3
Let q be (18/27)/(4/30). Let x(t) be the third derivative of t**4/4 - t**3/6 - t**2. Let c be x(1). Solve q*r = 5*k - 35, 36 = c*k - 3*r + 11 for k.
2
Let x be 2/(-5) + (-10)/(-25). Let q = 0 + 4. Suppose 6*p - 2*p = q*i - 12, i - 3*p = -1. Solve i = -j + t, t - 3 = -j - x*t for j.
-1
Let d(s) = 6*s**2 + 4*s + 3. Let n be d(-1). Solve -3*v - 21 = 2*q, 3 = v - q + n for v.
-5
Suppose 8 = 2*y + 3*l - 0, -4*y = l - 16. Solve o = 3*d - 0*o - 9, -2*o - 12 = -y*d for d.
3
Suppose -z - 5*b = -3*z + 22, -z = 3*b. Solve -z = -n + 2*i, -5*i - 5 = -0 for n.
4
Let z be (-21)/3*1 - -1. Let u be (90/(-3))/(z/4). Suppose 3*g = 8*g - u. Solve -2*t = -g*b, -2*b + 2 = -2*t + b for t.
-4
Suppose -9 + 21 = 4*k. Solve -6 = k*w - 2*t + 8, -4*t = -4*w - 24 for w.
-2
Suppose 3*d - 21 = -3*s, d + 7 = s - 0. Let y = -3 + s. Solve 3*h - 3*z - 9 = -y*z, -3*h - 2*z = -6 for h.
4
Let z(r) = 3*r. Let p = -1 - -3. Let s be z(p). Solve -18 = -4*o + 5*h, 0 = -0*h + 3*h + s for o.
2
Suppose 0 = 6*t - 18 + 6. Solve -4*u = 5*h - 16, -5*h + 19 = 3*u - t*u for h.
4
Let g be (-3 - -1)*(-8)/2. Let x = -8 - -10. Solve -4*m - 8 = 0, 2*s = s + x*m + g for s.
4
Let n(m) = m**2 - 7*m - 4. Let v be n(8). Suppose -v - 1 = a. Let w(u) = -u**2 - 5*u + 2. Let z be w(a). Solve 4*t = -6*f + 3*f - 2, 3*t + 4*f = z for t.
-2
Suppose 4*h + 3*m - 5*m = 66, 0 = 4*h - 4*m - 76. Solve -3*n = -0*j - 4*j - h, -4*n = j - 6 for n.
2
Let s be (0/2 - 2) + 26 + -22. Solve 0 = -s*o - 4*w, o + o - 6 = 2*w for o.
2
Let m = 19 + -16. Suppose 2*d = -m*d + 15. Let b(o) = 2*o - 6. Let n be b(7). Solve d*w + 4 = 2*z, 2*z + z = w - n for z.
-4
Let f be 6/((-4)/((-56)/1)). Suppose 5*o - 105 + 2 = 4*p, 4*o - f = 4*p. Suppose 10 = 4*a + 2. Solve -a*i + i + 4*s = 21, 3*i + o = s for i.
-5
Let t(c) = -c**3 + c**2 + 2. Suppose 2*s + 2*s = 0. Let o be t(s). Solve -1 = o*q + 2*q + f, 3*q + 18 = 5*f for q.
-1
Let s(z) = 2*z - 4. Let t be s(3). Suppose -6 = -t*m - 2. Solve -2*v + 2 = -0*i - 2*i, -1 = -3*v + m*i for v.
-1
Suppose -d = 3*y - 4*y - 5, 0 = -5*d + y + 21. Solve 2*t - m - 22 = d*m, -4*t + 3*m = -16 for t.
1
Let h(t) = 10*t**2 - t + 1. Let w be h(1). Suppose -5*i = -0*i - w. Let v be (i + 1)/(2/6). Solve 3*z = -2*f - 3*f - 19, -3*z - v = 0 for f.
-2
Let q(i) = i**2 + 7*i + 2. Suppose -p - 2*p = t + 16, -5*p = 15. Let x be q(t). Solve 5*w - x = 4*b - 5, -3 = -w + 2*b for w.
-3
Suppose -d = 4*b - 98, 5*b - 2 = -2*d + 119. Let p be 2/1*(-266)/(-28). Solve -k - 2*k = o - p, 5*k - b = 0 for o.
4
Let b be (-3 + 1 - -3) + 1. Suppose 5*c = -3