Let k = 10 - -20. Suppose -5*r - 27 = -j - 3*j, 5*r = 5*j - k. Solve 4*h + 1 = j*h for h.

Suppose 76 = 4*z - 2*a, -4*a + 18 - 50 = -2*z. Let y = 7 - 12. Let c = y - -7. Solve 2*i - z = -c*i for i.

5

Let w(l) be the first derivative of -l⁴⁄₄ - 2*l3 + 2*l + 1. Let z be ((-1)/(-2))/((-3)/36). Let t be w(z). Solve -2 = -k + t for k.

4

Let j = 56 - 56. Solve j = -4*i - 4 - 4 for i.

-2

Suppose 2*k + 12 = -z + 5*z, 4*k = 5*z - 12. Solve -3*b + k*b - 2 = 0 for b.

-2

Let g(t) = t3 + 9*t2 + 8*t - 8. Let p be g(-8). Let d = p + 12. Solve -5*j - 4 = -d*j for j.

-4

Suppose 0 = 2*y - 0*y. Suppose y = -m - 2*m + 9. Solve -4 = -m*k + 4*k for k.

-4

Let w = 2 - 2. Suppose k = -3*y, k - 1 = -2*y - w. Solve -k*h = -5*h for h.

0

Suppose -8*r - 46 = -31*r. Solve k = 1 + r for k.

3

Suppose -5*d + 74 = u, -3*d - 5*u - 10 = -50. Solve -10*m = -d*m for m.

0

Let i(w) = -w**2 + 9*w - 13. Let g be i(6). Suppose -g*o + 10 = -0. Solve -o*z + 5*z = 0 for z.

0