Let f be (28⁄42)/(4⁄30). Solve f + 0 = l for l.

5

Suppose -4*f + f = -12. Solve 8 = f*p - 4 for p.

3

Suppose 3*p - l - 12 + 1 = 0, p - 4*l = 0. Suppose c + 3*h - 13 = 6, 41 = p*c + 5*h. Let n be 5/(-1 - -2) + 1. Solve -2*s + c*s = n for s.

3

Let r = -6 - -9. Suppose -2*f + 106 = -5*u, -4*f + 9*f = r*u + 303. Let o be 14/f - (-2)/(-9). Solve -s = -o*s for s.

0

Suppose -4*h - 5*s = -7, 7*h - 5*s - 14 = 4*h. Solve h*b = 5*b + 2 for b.

-1

Let q be ((-2)/1)/((-4)/10). Let d(j) = -q*j2 + j3 - 2*j**3 - 6 - j + 6*j. Let z be d(-6). Solve z*f = -5*f - 10 for f.

-2

Suppose -2*u - z - 4*z = 8, -4 = 4*u + 4*z. Solve u - 9 = -2*s for s.

4

Let d(z) = -z3 + 3*z2 - z - 1. Let y be d(2). Let n = 3 - y. Solve s = -n*s for s.

0

Let k(s) = -s**2 + s + 4. Let m be k(3). Let p = m + 4. Suppose -10 = 5*q - 5*b, p*q - 31 = -0*q - 5*b. Solve -q*g = -g for g.

0

Let l(o) = 2*o**2 - 8*o. Let h be l(4). Solve -q - 4 = -h for q.

-4