Suppose 5*h + 31 = 51. Solve 0 = c + h - 0 for c.

Let u be ((-2)/(-6))/((-8)/72). Let o = u + 23. Solve -6*i + i - o = 0 for i.

-4

Suppose 3*n = 5*p + 5 + 5, n = 2*p + 4. Solve 0 = -n*r - 5*r - 20 for r.

-4

Suppose -2*v + 4 = -2. Solve 2 = v*s - 10 for s.

4

Let q be ((-4)/(-2))/(-4)*0. Solve q = -v - 1 for v.

-1

Let r = -31 - -36. Solve 2 = -r*o + 7 for o.

1

Let u = -173 - -177. Solve 0 = -u*h - h + 5 for h.

1

Let h(d) be the second derivative of -d⁴⁄₁₂ + d3 - 3*d. Let j be h(5). Solve 0 = j*t - 3*t + 4 for t.

-2

Suppose 4*t + 2*w = 30, -4*t + 3*w + 2 = -13. Let c = -2 + t. Solve 0 = c*y - 3*y - 4 for y.

4

Suppose 4*t + 1 = -u + 16, -4*t = -4*u. Solve -t*n = -5*n + 8 for n.

4

Let y(k) be the third derivative of k⁶⁄₁₂₀ + k⁵⁄₁₀ + k⁴⁄₆ - k³⁄₆ - 5*k**2. Let a be y(-4). Solve -4*z = -z - a for z.

5