Let w(d) = -14*d**3 - 24*d**2 + 38*d + 21. Let m(r) = 5*r**3 + 8*r**2 - 13*r - 7. Let g(x) = 11*m(x) + 4*w(x). Let h be g(-9). Solve 0 = h*a - 2*a - 20 for a.

Let g be ¹²⁄₅ - (-12)/(-30). Suppose 19 = -2*r + 5*i, 5*r - 25 = -0*r - g*i. Solve -4 - 2 = r*d for d.

-2

Let w = 51 - 49. Solve 2*z + 12 = -w*z for z.

-3

Suppose 36 = -8*r + 6*r. Let j = -68 + 28. Let s be j/r - ¹⁰⁄₄₅. Solve 2*u - s = -0*u for u.

1

Let l(b) be the third derivative of b⁶⁄₁₂₀ - 7*b⁵⁄₆₀ + 2*b³⁄₃ - 2*b2. Let x be l(7). Solve 0 = -3*s + x - 19 for s.

-5

Let y(s) = s3 + 5*s2 + 7*s + 4. Let i be y(-3). Let j(f) = f3 - 2*f2 - f - 1. Let n be j(3). Suppose i = -4*k + n. Solve k = -u + 2 for u.

1

Suppose 0 = 4*t - 2*t - 6. Let w = t + -1. Solve -z = -w*z - 1 for z.

-1

Let c = 10 - 10. Suppose c = 4*i + i - 25. Suppose -i*y + 15 = -2*y. Solve 0 = -3*g - 7 - y for g.

-4

Let s(f) = f3 - 7*f2 - 6*f - 4. Let v be s(8). Solve i - v = -3*i for i.

3

Let i be (¹⁵⁄₂₀)/(-3)*-20. Solve 0 = i*w - 20 + 5 for w.

3

Suppose -4*o - 26 = -5*m, 4*m = -m - 5*o + 35. Suppose -3*f + 15 = -m. Solve f*d = 3*d - 12 for d.

-3