Let f = 67 + 24. Suppose 0 = -5*r + f - 21. Let x be r/(-2)*(-7 + 6). Solve 2*j - 1 = x for j.

Suppose 4*o - 2*o + 3*z + 6 = 0, -4*o - 5*z = 8. Suppose -4*s + 20 = 4*x, 2*x + o*s = -2*x + 19. Solve -1 = 5*k + x for k.

-1

Suppose 0 = -4*p + 2*y - 4, 4*p = 3*y + 1 - 7. Let q = -4 - -2. Let d = 2 + q. Solve 2*z + p*z + 8 = d for z.

-4

Let f = -9 + 15. Solve -q - 10 = -f*q for q.

2

Suppose -4*g - 8 = -2*g. Let s = 8 + g. Solve -s*u + 6*u = -8 for u.

-4

Suppose -8 = -5*d + d. Suppose 0*r - d*r + u = -11, 4*r + 3*u + 3 = 0. Solve 0 = -r*o - 4 - 2 for o.

-2

Let b be ¹⁰⁄₄ + (-3)/(-2). Let k be (26 + -1)*(1 - 0). Solve 9*g - b*g = k for g.

5

Suppose 9*y - 4*y = -3*n + 31, 0 = -2*y + 4. Solve n*v = 3*v for v.

0

Suppose 4*d = 5*h - 33, 6*h - 16 = 2*h - 2*d. Solve -3*l = -h*l for l.

0

Let x be 13 + 3*(2 + -3). Let q be (11 - x)*2*1. Solve -b - q*b = 6 for b.

-2

Let i(b) be the second derivative of -b⁴⁄₁₂ + b³⁄₃ + b**2 - 2*b. Let f be i(2). Solve 0 = -l + f*l + 3 for l.

-3