Suppose 3*a + 3 - 30 = 0. Solve -a = -z - 2*z for z.

Suppose 0*r - 2*r = 0. Suppose -l + q - 2 = r, q - 7 = 4*l - 2*q. Let u = 2 - l. Solve -t + 0*t = -u for t.

3

Let i = 1 - 1. Let k = i + 0. Solve -3 = -3*h - k for h.

1

Let s = 6 + -3. Suppose -5*b = 2*a - 18, 15 = 4*b - b - s*a. Solve l = b*l for l.

0

Suppose 0 = 4*f + 2*f - 12. Solve f*o + 7 = 1 for o.

-3

Suppose -6 = -3*n - 3*h, n - 2*h = 2*n + 3. Let k be (-2)/4 - ³⁄₂. Let x = n + k. Solve x*j + 4 = 9 for j.

1

Let j be (-8)/(-3) - 5/(-15). Suppose j = 3*p - 3*g, 4*p - p = -g - 1. Solve p*n - 3*n = -12 for n.

4

Suppose -3*s - 1 = -2*h, 5*h = -s + 7 + 4. Let y be (h/(-4))/(1/(-4)). Solve -i = -y*i - 1 for i.

-1

Suppose -5*p + 2*x + 22 = 0, p = -4*p + 5*x + 10. Solve 7*k + 1 = p*k for k.

-1

Let t = 8 - 6. Let c(o) = 2*o3 - 3*o2 + 2*o - 3. Let i be c(t). Solve -i = -4*d + 3 for d.

2

Let i(w) be the second derivative of -w⁴⁄₁₂ + w³⁄₂ - w**²⁄₂ + 3*w. Let u be i(2). Solve -4*o - 21 = -u for o.

-5