Let r be 21/15 - (-3)/5. Suppose -z - 2 = -r*z. Solve 6 = -4*o + z*o for o.

Let m = 57 - 57. Solve s + m = 2 for s.

2

Let j be (-2)/(2 - ³⁄₃). Let g = 9 + j. Solve 4*p - g = 5 for p.

3

Suppose 0 = 4*v - 0 - 16, -12 = 2*u - 3*v. Solve 0*m - 2*m + 10 = u for m.

5

Let b(n) be the third derivative of n⁵⁄₆₀ + n⁴⁄₃ - 7*n³⁄₆ - n2. Let z be b(-9). Suppose v = z*v. Solve v = a - 2 - 0 for a.

2

Suppose 2*r + 6 = -4*d + 20, -4*r + 80 = -5*d. Suppose -4*c = -4*m + r + 1, -10 = -4*m - 2*c. Solve -2*u - m*u + 15 = 0 for u.

3

Let h(j) = j3 + 6*j2 + j + 8. Let n = -5 - 1. Let k be h(n). Let u(i) = -i**2 + 5*i - 1. Let o be u(k). Solve 0 = 2*d - d - o for d.

5

Let l(q) = -q**2 + 6*q - 1. Let p be l(6). Let x = 9 - p. Suppose -2*t = 2 - x. Solve -c = -t*c for c.

0

Let f = 62 - 18. Suppose 0 = 4*h - f - 56. Solve 3*m + h = -2*m for m.

-5

Suppose 2*o = -2*o. Let i(g) = -g**2 - g + 5. Let l be i(o). Solve -l + 0 = 5*h for h.

-1

Suppose -74 = -5*t + 2*i, -4*t = 5*i - 4*i - 54. Let o(v) = v - 7. Let q be o(t). Solve q = 5*h + 2 for h.

1