Suppose 6 = -2*x + 5*x. Solve 2*r - x = 4*r for r.

Suppose -3*a = 5*r - 20, -r = 2*a - 0*r - 11. Suppose -j = s - a, 4*s + j - 5*j = 4. Solve s*c - 1 = -16 for c.

-5

Let u(p) = 2*p - 12. Let w be u(6). Solve a + 3 = -w for a.

-3

Let s be ((-26)/1)/(13/(-13)). Solve -1 = 5*b - s for b.

5

Let b(x) be the second derivative of x⁵⁄₂₀ + x⁴⁄₃ - x3 + 3*x²⁄₂ + x. Let t = 4 - 9. Let o be b(t). Solve 0 = -4*d + o*d for d.

0

Let r(u) = -u - 2. Let x be r(-6). Suppose 4 + 4 = x*t. Solve z = -t*z + 9 for z.

3

Suppose -91 + 79 = -3*h. Let s = 10 - 7. Suppose v + 6 = s*v. Solve v = -3*z + h*z for z.

3

Let l be (¹⁰⁄₁₅)/((-2)/(-78)). Solve 0 = 5*n - l + 1 for n.

5

Let d be 10/(-8) + (-2)/(-8). Let w be ¹¹⁴⁄₂₇ + 2/(-9). Let h be d/(-2) - (-10)/w. Solve 0 = -0*n + h*n - 3 for n.

1

Let t be 0/(-1 - -2 - -1). Let l be (t + 5)/(1 + 0). Suppose -b = j - l, 0 = 5*b + 2*j - 5*j + 15. Solve -5*v + v = b for v.

0

Let f(z) = 3*z2 - 2*z2 + 0*z**2 - 1. Let o be f(-4). Solve c + 4*c = -o for c.

-3