Let v be 15/12*(1 + -9). Let q = -15 + 9. Let a = q - v. Solve -c - c - a = 0 for c.

Let y be ((²⁄₂)/1)/((-4)/(-12)). Solve 4 + 5 = -y*x for x.

-3

Suppose f - 2*f = -4. Suppose -r - f*r = -15. Solve r*q + 4 = -5 for q.

-3

Let q(v) be the first derivative of -v³⁄₃ - 2*v2 + v + 7. Let b be q(-3). Solve -1 = 3*n - b for n.

1

Let w be 6/(-4)*60/(-18). Suppose 2*y - 2 = w*y + a, -y + 5*a = -10. Solve -v = -y*v + 2 for v.

-2

Let h = -54 + 55. Solve 0 - h = x for x.

-1

Let h© = -c3 + 6*c2 + 8*c + 9. Suppose 2*f - 5*f + 21 = 0. Let n be h(f). Solve z + 3*z = -n for z.

-4

Let w = -35 + 35. Solve w*t = -3*t - 6 for t.

-2

Suppose -3*r + 0 = -3. Solve -1 = -m + r for m.

2

Suppose -31*l = -29*l - 16. Solve 2*y + 2 = -l for y.

-5

Suppose -2 + 13 = 2*d + v, 4*v + 44 = 3*d. Suppose -3*a = -8*z + 3*z - d, 0 = 3*a + 5*z - 28. Let r = a + -6. Solve 0 = 4*c - r - 4 for c.

1