Let f be (8/(-5))/(4/(-10)). Solve -c = f*c - 25 for c.

5

Suppose h + 3*r + 2 = 6, 0 = -5*r. Solve x + h = 3 for x.

-1

Let m = 745 + -740. Suppose 0 = 3*s + 2*d + 14, -4*s - 7 = -2s - d. Let x be 0(-2)/s - 0. Solve m*v + x*v = 20 for v.

4

Let r(b) = 13*b2 - 5*b + b - 3*b + 9 - 12*b2. Let s be r(6). Let h(u) = -u + 8. Let o be h(6). Solve -f - o = -s*f for f.

1

Let f(x) = x3 + 5*x2 + x + 7. Let o be f(-5). Suppose 0 = 5*w + d - 30, o*w = 5*w - d - 18. Solve -w*y = -2*y + 16 for y.

-4

Let t(k) = k + 1. Let s(z) be the second derivative of z3⁄6 + z2 + z. Let q(v) = -3*s(v) + 2*t(v). Let u be q(-7). Solve 2 = -n - u for n.

-5

Let f be 1 + 0 - 0 - -35. Let o be ((-2)/(-3))/(3/f). Suppose -3*q + o*q - 25 = 0. Solve 10 = -q*k - 10 for k.

-4

Suppose 5*k = 2*k + 12. Suppose -4*n - 1 = -v - 3, -v + 2*n = -k. Let q(x) = 6*x**2 + 2*x + 1. Let l be q(-1). Solve v = 5*j - l for j.

3

Let u = -47 - -47. Solve -4*z + 3 - 7 = u for z.

-1

Let j(p) = -p**2 + 4*p + 2. Let q be j(4). Let l be 8 + 4/(-2) + q. Solve 2*d + 2*d = -l for d.

-2