Let z = -4 - -6. Suppose 4*f = 10 + z. Suppose 0 = -b + f*b. Solve b*u - 4*u = 0 for u.

Let x be (-39)/(-12) + ⁶⁄₈. Suppose l = x*l - 12. Solve -h - h = l for h.

-2

Suppose -2*l + 2*n - 5 = -7, 0 = 3*l + n - 19. Solve 15 = -l*a - 10 for a.

-5

Let x = 1 + 8. Let s = 20 - x. Let c(i) = -i3 - 2*i2 - 2*i + 1. Let l be c(-2). Solve l*m + 4 = -s for m.

-3

Let g = -8 - -8. Solve -5*l - 3 + 23 = g for l.

4

Let l = -16 - -31. Suppose -4*j - j = -l. Solve -8*c + j*c - 20 = 0 for c.

-4

Let j = -152 - -165. Solve -j - 2 = 5*x for x.

-3

Suppose 0*o = o - 13. Suppose o + 54 = w. Suppose -5*h = 22 - w. Solve -4*s - h = -s for s.

-3

Let k(z) = z3 - 7*z2 + z + 1. Let a be k(7). Suppose 0 = -4*t - t - 3*i + 10, -5*t + 5*i = 30. Let y be (-1 - 2)/(-2 - t). Solve v - a = -y*v for v.

2

Let q® = r**2 + 2*r + 1. Let a be q(-1). Suppose -3*n - 1 = -7. Let b be 3 - (n + 3/(-3)). Solve a = b*y - 3 - 1 for y.

2

Let b(a) = -3 - 4 + 3 + a. Let c be b(0). Let p = -2 - c. Solve -p*u = u - 15 for u.

5