Suppose -3*d + 20 = d. Solve 4*c + d = -15 for c.

-5

Suppose -5*f = -3*h - 27, -31 + 11 = 5*h. Let y(b) = b - 3. Let o be y(f). Suppose -a + 1 + 7 = o. Solve a + 2 = -5*c for c.

-2

Let g = -1 - -5. Suppose 12 = -g*p + 4*r, 0 = -2*p - 2*r - 1 - 1. Let a be p/2 - (-13)/1. Solve -2*o - o = a for o.

-4

Let a = 12 - 4. Suppose 0 = n - 5*m - 13, -2*n = -2*m - 18 + a. Solve -n*b + 4*b - 5 = 0 for b.

5

Suppose 4*z - 7*z + v + 10 = 0, 3*z + 3*v - 30 = 0. Suppose -f + zf + 20 = 0. Let w be 6/f(-10)/3. Solve w*x = 2*x for x.

0

Suppose 2*o - 3 - 9 = -4*c, 11 = 3*c + 2*o. Solve -2 + c = y for y.

-1

Let z(a) = -2*a - 13. Let k(h) = h3 - h2 + h - 10. Let u be k(0). Let y be z(u). Solve -2*f - 17 = -y for f.

-5

Let t = 71 - 51. Solve 2*d = 7*d - t for d.

4

Suppose 0 = -h + 3*r + 10, r + r - 30 = -3*h. Let l be 1⁄5 + 18/h. Suppose 5*a - 16 = 3*a - 3*q, -4*q + 18 = l*a. Solve a*b - 1 = -6 for b.

-1

Suppose 7*x - 3*x - 5 = -5*u, 2*x = u - 15. Solve -u*s - 9 = 1 for s.

-2