Suppose 4*h + 0*h - 12 = 0. Solve -4*d + h*d + 4 = 0 for d.

4

Suppose 4 = 3*m + 19. Let z = -5 - m. Suppose z = 2*p - 7*p. Solve p*c = -4*c for c.

0

Suppose 9 = -r + 3*w, 1 = -w + 4. Solve r*k + 4*k = 0 for k.

0

Suppose -5*f - g + 3*g = 8, 5*g - 20 = -5*f. Let w be 6⁄3 + f + 8. Solve c - w = -c for c.

5

Let f = 23 - 41. Let j be (-2)/(-4) + f/(-12). Solve -3*u = j*u + 20 for u.

-4

Let q = 7 + -5. Suppose q*a - 6 = -a. Suppose x - a = -h, h + 3*x + 14 = -2*x. Solve h = -n - n for n.

-3

Suppose 3*r = 2*r + 6. Let s be ((-1)/(-3))/((-2)/6). Let f(j) = 2*j**2 + 2*j + 1. Let m be f(s). Solve -r + m = -5*h for h.

1

Let z(a) = -2*a2 + 10 + 9*a + 3*a2 - 9. Let l be z(-9). Solve 0 = 2*n + l + 5 for n.

-3

Suppose -5*f = p + 53 - 19, 0 = -3*f - 5*p - 38. Let s = f + 9. Suppose r + 1 = s. Solve -d - r*d = 15 for d.

-5

Suppose -2*u + 8*u = 54. Solve 5*p + u + 6 = 0 for p.

-3