Let v = 15 - 0. Suppose j - 2*r = -3*j - 12, -5*r - 45 = 5*j. Let c = v + j. Solve 0 = 4*z + 2 + c for z.

Let n = 45 - 20. Solve 0*v = -5*v + n for v.

5

Let o(u) = -u**2 - 2*u + 1. Let b be o(-3). Let j be ((-4)/6)/(b/(-6)). Let s be (j/(-4))/((-1)/(-2)). Solve -9 = 4*d - s for d.

-2

Suppose -3*w - 5 = -4*w. Solve -2*v = -w*v - 12 for v.

-4

Let y© = -c3 - 5*c2 - 2*c + 4. Suppose 4*o + 14 = 2. Let d be y(o). Let i(h) = -2*h - 9. Let z be i(d). Solve -19 + z = 3*l for l.

-4

Let h© = 3*c - 13. Let k(f) = f3 - 2*f2 + 6. Let s be k(0). Let a be h(s). Solve a*y - 1 = -16 for y.

-3

Suppose y = 2*h + 2, 0 = -2*y + 5*y + 4*h + 4. Suppose -2*n - 5 = -3*i - y, 3*n + 2*i = 25. Solve 0 = 5*f - 15 + n for f.

2

Let g(f) = 4*f + 3. Let c(z) = -5*z - 2. Let m(s) = -3*c(s) - 4*g(s). Let r be m(-6). Solve 2*o - 5*o = r for o.

0

Suppose 0 = 5*f - f - 3*p + 23, 0 = -f - 3*p - 17. Let z be (2/(-3) - ²⁵⁄₃) + -2. Let g = f - z. Solve 12 = -g*x - 3 for x.

-5

Let p = 1 - 0. Solve -3*r - p - 5 = 0 for r.

-2

Suppose -5*o - q + 41 = 0, 5*o - q + 0*q - 39 = 0. Let z(i) = -i**2 + 8*i + 5. Let c be z(o). Solve 5*f - c = -0*f for f.

1