Let z = -12 + 13. Solve 4*f = -21 + z for f.

Suppose -4*u = -0*u - 2*g - 26, 0 = -5*u + 5*g + 20. Suppose -3*z + 9 = 3*t, 3*t - z + 2*z - 15 = 0. Solve t = -5*y - u for y.

-3

Suppose -3*s + 5 = i, 9 = -2*s + 4*i - 11. Let y(l) = -l - 4. Let c be y(-7). Solve s*w + w = -c for w.

-3

Let y(u) be the first derivative of -u⁵⁄₁₂₀ + u⁴⁄₃ - 2*u**³⁄₃ - 1. Let g(b) be the third derivative of y(b). Let h be g(6). Solve 0 = x - h for x.

2

Let d© = -c**2 + 2*c + 4. Let i be d(3). Suppose 5*g - 49 = i. Let n be (²⁄₄)/(1/g). Solve 10 = -n*o - 0*o for o.

-2

Let d(x) = 2*x - 5. Let m be d(4). Suppose 4*y = 2*l - 26, 2*l - 5*y - 40 = -m*l. Let p = 7 + -4. Solve 0 = -l*i - 0*i + p for i.

1

Let t(u) = -2*u. Let s be t(-2). Solve 3*f - 3 = s*f for f.

-3

Let r(w) = w. Let q(z) = 3*z + 3. Let f(b) = -q(b) + 4*r(b). Let t be f(9). Suppose 9 = 5*u - 2*h - 6, 2*u = 4*h + t. Solve u = -2*i + i for i.

-3

Let a = 3 + -2. Let t(n) = -3*n + 18. Let o be t(6). Let y = a - o. Solve -4*d - y = 7 for d.

-2

Suppose -2*l = 2*l - 64. Let d = -1 + l. Let u(f) = -f3 - 8*f2 - 8*f - 3. Let b be u(-7). Solve d = b*h + h for h.

3

Suppose 0 = 4*z - 5*d + 1, 4*z + 3*d + 0*d = -25. Let k(w) = w + 2 + w - 6*w - 5*w2 - w3. Let c be k(z). Solve -c*q + q = 1 for q.

-1