3*r for r.
3
Solve 0 = -5*t + 2*s + 29, 2*t = 5*t + s - 13 for t.
5
Solve 2*n + 4*h = 4, -4*n + 5*h - 7*h = -8 for n.
2
Solve 12*j = -4*t + 8*j, 0 = 4*j - 16 for t.
-4
Solve 5*g = 4*b - 8*b - 18, -3*g = 6 for b.
-2
Solve -5*z + 3*m - 6 = 0, 47*z - 49*z - 2*m = 12 for z.
-3
Solve 3*x - 5 = 2*m, 3*m - 20 = 22*x - 23*x for x.
5
Solve 0 = -t + 3*j - 2, -70*t = -72*t + 4*j - 4 for t.
-2
Solve 0 = -16*k + 14*k + 5*s - 25, 4*k + 2*s - 10 = 0 for k.
0
Solve -a = 2*j - 4, 4*a + 7 = 2*j + 3 for j.
2
Solve 5*d - 6 = -4*w, -2*w - 2*d = 3*w + 1 for w.
-1
