 c.
-2
Let n(k) be the second derivative of k**5/20 + 5*k**4/12 - k**3/2 - 5*k**2 + 6*k. Let j be n(-5). Solve j*o + 0 = l - 1, l = -4 for o.
-1
Suppose 20*h - 17*h + 6 = 0. Let x be 6 - (h/(-2) - (-1 - 0)). Solve -2*j - 8 = -x*s, 5*s - j = 3 + 13 for s.
4
Suppose 2*r = -2*w + 3 - 1, 2*w - 10 = 2*r. Solve 2*z = 2*q + 4, 0*q = w*z + 4*q - 27 for z.
5
Let m be (-212)/318 + -1 + 34/6. Solve -a + 5 - 1 = -m*r, -2*a - 4*r - 4 = 0 for a.
0
Suppose 0 = 60*u - 131 - 289. Solve -6*v + 11 = -3*b - u*v, -5*v - 33 = 4*b for b.
-2
Let v(u) = -u**2 + 44*u + 5. Let a be v(44). Solve 4*n + 18 = -0*b - a*b, b = -4*n - 10 for b.
-2
Let s = -158 + 59. Let o = 113 + s. Solve -2*v + 33 = -5*d, 0*d = 2*d - v + o for d.
-5
Let h(i) = -27*i - 347. Let n be h(-13). Solve 3*q - 3 = 0, -n*t + 2*q - q = -19 for t.
5
Suppose -44*s + 70 = -49*s. Let w(y) = -y**3 - 7*y**2 - 6*y + 1. Let r be w(-7). Let x = r + s. Solve 0 = 4*k + 3*c - x, 4 = 2*k - 2*c - 0*c for k.
5
Let j = -8 + 10. Suppose v - 20 = 5*i, -j*v - i + 7 = -0*v. Let a = -10 + 16. Solve a = -q + v*g - 0, 3*q - 1 = -4*g for q.
-1
Let q = 996 + -991. Solve w + 10 = -q*f, -6*f = -4*f - 2*w + 16 for f.
-3
Let k = 28 - 32. Let u(p) = -2*p - 6. Let f be u(k). Let g be -5 + f + 0 + 8. Solve -3*j + 3 = -4*a, g*j - 3*a + 4 + 2 = 0 for j.
-3
Suppose 2*i - 4 = -10. Let h = i + 3. Solve -k + 19 = -3*a, -2*a + h*k = 2*k + 2 for a.
-5
Suppose r + 3*h = -4, 9 - 3 = -r - 4*h. Solve -4*x + 4*v = 20, -15 = r*x + 2*x + v for x.
-4
Let n be (-2)/(12/(-105) + (-4)/14). Let l = -4 + 2. Let h be l - 9/2*-6. Solve 13 = -3*a + 1, h = -u - n*a for u.
-5
Let d(z) = 2*z + 75. Let j be d(-36). Solve j*p = -p + 4*u - 28, 4*u = 8 for p.
-5
Suppose 0 = 6*q - 11*q + 40. Suppose -2*t = 5*j - 15, 12 = 3*j - t - q. Suppose p - 4*p + 12 = 0. Solve g = p*c, 0*g = j*g + 2*c for g.
0
Let i be 32/(-6)*(-39)/26. Solve 3*x + 3 = 3*n, -2*n = n - 4*x - i for n.
-4
Let i(x) = -x - 4. Let z be i(-4). Let q be 0 - (-4 - (-2 - z)). Solve q - 3 = -t, p + 2 = -2*t for p.
-4
Let x be (-1 - 12/1)*-5. Let f = 57 + x. Suppose b + 3*b - 107 = -j, 0 = 4*b - 2*j - f. Solve w - 16 = 3*v, -3*w + 3*v = w - b for w.
4
Let q(b) = -11*b**2 + 6. Let i be q(-2). Let c = 60 + i. Solve 3*h - 14 = -5*k, -3*k + 2*h + 3*h = -c for k.
4
Let z(r) = 3*r**3 - r**2 + r. Let b be z(1). Suppose 2*x - 27 = -x. Solve 0 = -3*s - x, -4*i = -0*i - b*s - 17 for i.
2
Suppose 12*x = 8*x. Let q be (-4)/(-1) - (x - 0). Suppose -3*k = -b + 2*k + 13, q*b - 52 = -3*k. Solve 0 = -5*p + b + 2, 5*p = 2*r + 15 for r.
0
Let z(n) = 68*n + 145. Let a be z(-2). Solve -i - 5*m + 7 = -a, -3*i - 32 = -5*m for i.
-4
Let t be -3 - -3*(-28)/(-12) - 7. Let d be (t + 24)/3 + -5. Solve 2*y = -3*j - 2*j + 4, 0 = -y + 5*j + d for y.
2
Let i be (30/5 + -4)*51/6. Suppose i*x = 12*x + 10. Let k(p) = -p**3 - 4*p**2 - 3*p + 4. Let r be k(-4). Solve 3*g = x*l - 0*l, 0 = 2*l + 5*g - r for l.
3
Suppose -26*d - 64 = -610. Solve -2*j + 5*x + d = 0, -j = j + x - 3 for j.
3
Let n(d) = -d**3 - 8*d**2 - d - 2. Let o be n(-8). Suppose o*z = 5*z + 5. Solve 4*g + 5*f = -36, z*g - f + 19 = 3 for g.
-4
Let a = 2 - 2. Suppose 3*z - 13 = -1. Suppose -z - 21 = -c. Solve 10 = 5*b + 5*w + 25, a = 3*b - 5*w + c for b.
-5
Suppose 0 = 9*r - 1 - 26. Let t be (9/6)/((-2)/(-4)). Solve -l + 4 = 2*f, l + t*l = r*f - 28 for f.
4
Let f(o) = 5*o**2 + 11*o + 9. Let t be f(-2). Solve -2*a + 16 = -2*v, -3*a - 2*v - t = -2*a for a.
3
Suppose 7*v = -7 + 42. Let l be 18/99 - 4/22. Suppose -5*d + 2*h + 14 - 4 = l, -h = 5. Solve -3*i + 5*c = v + 7, 5*c = d for i.
-4
Suppose 4*v = 0, 3*d - 74 = -3*v + 4. Let k(a) = -a**2 + 3*a + 7. Let u be k(0). Solve 4*t - u = -p, -t + 4 - d = 5*p for t.
3
Let n(y) = y**2 - y + 2. Let i be n(0). Let o(q) = -q**3 + 5*q**2 + q - 1. Let l be o(5). Solve -l = -i*s + 4, -2*s = 3*d - 5 for d.
-1
Let d(t) = -t + 15. Let h be d(5). Suppose -3*k + 5*z + h = -4*k, -3*k + 4 = -2*z. Solve 6 = 5*b + w + w, k = -3*b + 3*w - 9 for b.
0
Suppose -60*r - 403 = -1123. Solve r = -k + m + 4*m, -k - m = 0 for k.
-2
Suppose -2*d + 33 = 4*i + 5, -5*d = -5*i - 70. Solve -3*b + d = 5*l, 5*l - 5*b = -10*b + 10 for l.
4
Let v = 281 - 277. Suppose 2*k + 3*a = -k + 15, 4*k + 5*a = 25. Solve 2*q + 4*w + 14 = 0, -2*q + 5*w + v + k = 0 for q.
-3
Let u = -6 - 74. Let v = 88 + u. Solve 0 = s + o, o - 4*o = 5*s - v for s.
4
Suppose -2*g - 2*j + 6 = 0, 8 = -j + 10. Let x = 4 + -2. Solve g = 4*w + x*f + f, -w + f = -9 for w.
4
Let s be 12/5 + 32/20 + -2. Solve 13 = -l - 4*b - 3, s*l - 4 = 4*b for l.
-4
Suppose -3*z + 70 = 4*t, 5*z = t + 181 - 26. Let b = z - 28. Let j be 14/7 - (-1 + -5). Solve 0*r = -c + r + 2, -b*c - j = 4*r for c.
0
Let o = 27 - 25. Let c be (o - 5 - -3)*1. Solve 5*s + 3*r - 15 = c, 3*s + 3 = 4*s + 2*r for s.
3
Let t = 55 + -50. Solve -3*m = -0 - 12, -t*n + 35 = 5*m for n.
3
Let n be ((-2)/14)/(8/(-168)). Solve s + 3 = 4*c - 3*c, -n*c = 5*s - 1 for s.
-1
Suppose 3 = -3*j + 2*y, 3*y - 4 = 5*j - 0. Let o(m) = -2*m**2 + 1. Let d be o(-1). Let h be 0/(2/j + d). Solve h = 4*l - 20, b + 2*l = -2*l + 18 for b.
-2
Let h(x) = x**2 + 16*x + 21. Let i be h(-15). Solve -2*j + 12 = 4*f - 0*j, -2*f = 3*j - i for f.
3
Suppose -110 = -19*b - 34. Solve 3*a + 4*c - 1 = 21, 0 = -b*a + c + 4 for a.
2
Let y(m) = -m**2 - 27*m - 24. Let b be y(-26). Solve 3*c = b*k - 19, -2*k - 1 + 0 = c for c.
-5
Let w be 4/(-4 - -3) + 13. Let y = -2 + w. Suppose -5*t + 6 = -2*f, y - 3 = t. Solve f*b - 3*o = 2*b - 37, 0 = -4*b - 3*o - 8 for b.
-5
Let q be 6/7*(9 - 2). Suppose -u = -a + q*a + 17, 4*a + 4*u + 20 = 0. Let y = a + 5. Solve 3*p + h - 1 = 0, -p - 4*h + 17 = -y*p for p.
-1
Suppose -3 - 7 = -5*z. Let n = 349 - 336. Let x be 7 + 3/(3/(-2)). Solve n = g + 3*q, -z*q = x*g - g - 22 for g.
4
Suppose -23 = -z - 5*f, -2*f - 1 = -4*z + 3. Let b(o) = 3*o - 31. Let m be b(13). Let a be (-4)/((-32)/4)*m. Solve 0 = 3*c - 5*d - 35, 0 + 8 = a*c + z*d for c.
5
Suppose -2 + 6 = i. Suppose -46 = -2*c + 4*v, i*v - 26 = -c + 7*v. Solve 0 = 2*w - w + 4*b - c, -4*b - 3 = -3*w for w.
5
Suppose 0 = 5*d - s - 11, -3*d - 5 + 15 = -4*s. Let y be ((-8)/12)/(1/(-3)). Let n = d - y. Solve -5*k + 3*p - 4 = -n, 5*k + 18 = -4*p for k.
-2
Let p(l) = -l**3 - 2*l**2 + 19*l + 47. Let r be p(-4). Solve 2*q - r*u = -8, 4*u = 5*q + u + 2 for q.
2
Let w = -6 - -8. Suppose 0 = 2*r - 2*d + 44, d = -5*r - 4*d - 90. Let n = -16 - r. Solve -1 = 4*k - o, w*o = -n*k + 7*o - 21 for k.
1
Suppose j = -2*i + 5*i, -4*j - 2*i = 0. Suppose 0 = 4*l - j. Solve 3*r + 13 = -4*a, -5*a - r + 3 - 22 = l for a.
-4
Suppose 3*c = -12, -161*c = -k - 164*c - 4. Solve k*p = 3*p + 3*q - 19, 2 = 2*p + 2*q for p.
-2
Let g(q) = -q**2 + 4*q. Suppose -37*u + 18 = -31*u. Let b be g(u). Suppose -4*o + 5 - 1 = 0. Solve -4*m + 4 = b*h, 0*h + h + o = m for h.
0
Let g(c) = -c**2 + 5*c + 16. Let o be g(7). Suppose 5*a + 25 = 0, 2*a + 3 = -o*u - 3. Solve -5*l - 6*z = -u*z - 15, 4*z = 5*l + 25 for l.
-1
Suppose 13*s = -17*s + 60. Solve -4*m = -8*n + 11*n + 6, -s*n - 4 = 0 for m.
0
Let v = -5 + 12. Let m = v - 10. Let g = 14 + m. Solve g = z + 2*z + n, 4*n + 4 = 0 for z.
4
Suppose 25*a = 7*a + 36. Let i(c) = -c + 2. Let y be i(-5). Solve -y = -r - h, r + 2*h = 2*r + a for r.
4
Let s = 782 - 780. Solve 2*m = s*c - 2, 5*c + 0 = 3*m + 7 for m.
1
Let k be 1/(-5)*-5*0. Suppose -1 = i - 4. Suppose -i = -k*s - 3*s. Solve 5*f + 10 = 0, s = -2*h - 2*f + 3 for h.
3
Suppose -106 = 5*t - 526. Suppose -h - t = -8*h. Suppose 15*k - 19*k = -h. Solve 4*j + 11 = k*c, 11 = j + c + c for j.
1
Let q(g) = -g**2 + g + 32. Let y be q(6). Solve y*l + 3*o - 8 = 0, -8 = 2*l - 4*l - 2*o for l.
4
Let o be 5 + (3 - 3)/6. Suppose -7*s + 2*s = -10. Suppose -8 = 2*m, 2*w + 0*w = -s*m + 6. Solve w*r - 2*r = p, -o*p = 3*r for r.
0
Let a(s) = 87*s - 345. Let o be a(4). Solve -4*h - 2 - 1 = -3*k, -o*k - 24 = 5*h for k.
-3
Suppose 0 = 36*f - 115 + 7. Solve f = 3*k, -j + 3*k = -0*k for j.
3
Let i(m) = m**3 - 3*m**2 + 2*m + 2. Let r be 5/(-15) + 7/3. Let b be i(r). Solve 13 = 3*k - b*v, 0 = -k - 2*k + 4*v + 11 for k.
5
Let c = 10 - 5. Let a = 54 - 28. Suppose 3*l = -2*q + 2, -6*l = -2*l - q - 10. Solve -c*w = 3*s + a, s + l*w = -15 + 5 for s.
-2
Suppose 4*i = -3*n + 18, 10*i = 2*n + 14*i - 16. Solve -7 = 2*a + j, n*a + 0*a + 22 = -4*j for a.
-1
Let b be 3*((-11)/3 - -3). Let x be (4 - -1)*