Let v be 20*(5 - 2 - 4). Let f be 1/(4 + 78/v). Solve -f + 30 = -4*i for i.

Let u(a) = 3*a**2 - 7*a + 4. Let r be u(4). Suppose -t - 4*g = -0*t + 12, t - 5*g = r. Solve f = -t*f for f.

0

Suppose -7*u = -u - 36. Solve u = 3*x - 6 for x.

4

Suppose 0 = 4*l + 3*u - 15, 13 = 5*l - 5*u + 3*u. Let p = -13 + 15. Let w = 5 + p. Solve -5*g - w = l for g.

-2

Let t(m) be the first derivative of m⁴⁄₄ - 16*m³⁄₃ - 8*m**2 - 7*m + 7. Let p be t(17). Solve 3*s = s + p for s.

5

Suppose 2*k - 47 = -15. Solve -k = -f - 3*f for f.

4

Let p be 1/((-1 - -2)/3). Let y = 10 + -5. Suppose -10 - y = -p*x. Solve -x*z = -7 + 17 for z.

-2

Let t = 3 - 1. Suppose -3*j = 3*y - t*y + 22, -2*y - 39 = 5*j. Let q = y + 10. Solve 1 = -q*k - 14 for k.

-5

Let u = 11 + -9. Let t be ⁶⁄₁₈ + u/(-6). Let x = -2 + 7. Solve 0*g + x*g = t for g.

0

Let h be (0 - -2) + (-16 - -18). Solve h*c + 5 = -11 for c.

-4

Suppose -6*v + v = -20. Suppose 2 = 7*o - 12. Solve -v*k - 2 = o for k.

-1