Suppose 0 = 21*v - 15*v - 30. Solve 0 = l - v - 0 for l.

Let w(b) be the first derivative of b⁴⁄₄ - 4*b³⁄₃ + b**2 - 4*b - 2. Let p be w(4). Let m = -2 + p. Solve -3*u = -m*u - 5 for u.

5

Let b(o) = o**2 - o - 5. Let d be b(4). Let a be (-254)/(-8) - d/(-28). Let r be (-10)/50 - a/(-10). Solve r*i + 4 = i for i.

-2

Let d = -5 + 8. Solve 7*n = d*n - 12 for n.

-3

Let v = 6 + -6. Suppose v*m + 2 = m. Suppose 0 = -m*r - r + 3*q + 36, -38 = -4*r + 2*q. Solve -r*i - 20 = -3*i for i.

-5

Suppose 0 = -2*x + 7*x + d - 24, x + 3*d = 16. Suppose -20 = -x*k - k. Solve z - k = 2*z for z.

-4

Suppose 3 = -2*n + 9. Suppose 2*i - 3*i = -2. Suppose -4*u = 4*o, -n*o - u + 2 = -i. Solve o = -5*x + 17 for x.

3

Let d = -57 + 96. Let c be 5*d*¹⁄₁₅. Solve 5*m + c = -2 for m.

-3

Suppose -6 = -2*i - 2, -v = -4*i + 2. Solve v*w = w + 15 for w.

3

Suppose 6*w = -6 + 78. Solve -4*q - 28 = -w for q.

-4

Suppose -c + 92 = 3*c. Let a be 6/(-21) + c/7. Suppose n + 7 = 3*u, u + a*n = -3*u + 5. Solve -k = u*k for k.

0