Let r(d) = -d**3 + 4*d**2 + 5*d + 7. Let a be r(5). Solve a*c - 20 = 3*c for c.

Suppose 5*l + 4*s = -28, -4*s - s - 26 = 4*l. Let a be (3 + 27/(-6))/((-5)/20). Let m = l + a. Solve -3*y + m = -y for y.

1

Suppose 5*n = s - 14, n + 22 = 5*s - 0*s. Solve -6 + s = -2*z for z.

1

Let j(n) = n**2 - 9*n - 7. Let c be j(10). Solve c*a + 2*a = 0 for a.

0

Let d be ((¹⁰⁄₁₅)/(-1))/((-1)/3). Solve -3*v + d = -4*v for v.

-2

Suppose 4*h + 2*w - 22 = 0, -21 = 4*h - 3*w - 68. Suppose 0 = -a + 3*a - h. Solve -5*q + a = -21 for q.

5

Let v = 136 - 124. Solve 0*q + v = -3*q for q.

-4

Suppose -6*l + 3*l = -2*q + 9, 3*l = 3*q - 9. Suppose -50 + 10 = -4*d. Suppose -3*u = t - 21, -u - 2*t + 2 + d = q. Solve -u = -p - 1 for p.

5

Let j(u) = -u**2 - 15*u + 20. Let z be 62/(-4) - ¹⁄₂. Let x be j(z). Solve 8*m = x*m for m.

0

Suppose 3*y + 3 - 12 = 0. Solve -y*v + 2 = 11 for v.

-3

Let x(q) = q3 + 6*q2 - 4*q + 6. Let n be x(-7). Let l = 23 + n. Solve 2*r = 4*r - l for r.

4