Let l = -13 - -18. Solve l*d - 31 + 11 = 0 for d.

4

Let x be (-168)/(-36) - (-2)/(-3). Suppose -2 + x = b. Solve -b*m = -0*m + 6 for m.

-3

Suppose 0 = -5*r + 3 + 7, 2*v = 3*r - 6. Solve -5*z + v = -10 for z.

2

Suppose 10 = -4*n + 30. Suppose q + 2 = n*y, 5*y - 1 - 3 = 2*q. Solve y = 5*d - d for d.

0

Suppose -x = 10 - 12. Solve x*l = -2*l - 8 for l.

-2

Let t = -21 + 29. Let y be 1 - 2/(t/(-12)). Solve y = d + 9 for d.

-5

Let s(q) = q3 - 4*q2 + 3*q + 3. Suppose 4*v = -0 + 12. Let n be 2 + v*39. Let z be s(n). Solve l + z*l = -16 for l.

-4

Let w(x) = -x3 - 18*x2 - 17*x + 4. Suppose -4*h + 35 - 103 = 0. Let r be w(h). Solve 4*i + 4 = -r for i.

-2

Suppose -2*d + 9 = -5*d + 2*m, 7 = -4*d + m. Let x be -2 - (d - (11 - 0)). Suppose 4*h + 12 = -4*r - r, 3*h + 9 = -4*r. Solve -2*l + 0*l + x = r for l.

5

Let n = -8 + 8. Suppose n = -3*z + 11 + 7. Let w = -2 + z. Solve -14 = -w*f + 6 for f.

5