Let n(q) = -q + 18. Let m be n(15). Solve 4 = -i + m for i.

Let c(j) = -j**2 + 7j. Let s be c(5). Let u = 19 + -13. Let x be 2/u(s - 4). Solve i - 2*i = -x for i.

2

Let y = 5 - 0. Let l(a) = -a3 - 5*a2 + 2*a - 4. Suppose -9 - 21 = 5*d. Let z be l(d). Solve 0 = -y*s - 0*s - z for s.

-4

Suppose 1 - 3 = -l. Let q = 3 + -2. Let f = 4 - q. Solve -f*c + l*c = 2 for c.

-2

Suppose -5*y + 27 = -33. Solve 0 = -4*u + u - y for u.

-4

Let j be -1 + 4 + 5 + -6. Solve -s = -2*s + j for s.

2

Let w = 25 - 23. Solve -w*f + 4 = -f for f.

4

Suppose 2*u + 1 - 9 = 0. Solve u*f + 10 = -f for f.

-2

Let g = 11 + -7. Suppose 0 = x + 3 - 6. Solve g*w + x = -1 for w.

-1

Suppose l + 9 = 2*r, 3*r - l = 9 + 4. Solve 5 = r*s - 15 for s.

5

Let o(q) = -3 + 4 + 5 + 6 + q. Let c be o(-9). Solve 5*h + 8 = c for h.

-1