Suppose -4*a = 2*c - 20, -c - 3*a - 21 = -4*c. Let w = -3 + c. Let q = w + -1. Solve q*u = -1 - 3 for u.

Suppose -2*n - 3 = 5. Let w be (-1)/n + ²¹⁄₁₂. Solve -w*q = q for q.

0

Suppose -225 = 4*q - 73. Let v be q/(-9) + 4/(-18). Solve -3*h + v = h for h.

1

Suppose -2*d - 2*d - 4*q = -32, 19 = 5*d - 2*q. Suppose 0 = 4*u - d*k, 0*u - 5*k = -5*u. Solve 5*r - 15 + 0 = u for r.

3

Let m be -1*(-1)/(-3)*0. Suppose -q - 3*q + 4 = m. Suppose -s + 3*s - 2 = 0. Solve s = k - q for k.

2

Let j(a) = -a. Suppose -5*m - 10 = -25. Let x be j(m). Let r be -2 + x + (4 - -1). Solve -8 = -r*b - 2*b for b.

4

Let t = -1 + 5. Let h be t + 4/(-2) - 3. Let r = 3 - h. Solve r*q = -0*q - 12 for q.

-3

Suppose 0 - 28 = -4*w. Solve w*t - 2*t + 15 = 0 for t.

-3

Let h(s) = s**2 + 10*s + 3. Let f be h(-10). Solve -3*l - 6 = -f for l.

-1

Suppose -4 + 14 = k. Suppose -4*s + k + 30 = 0. Solve s = -2*o - 0*o for o.

-5

Let s = 10 + -5. Let o = s - 0. Solve 0 = o*d - 3 - 7 for d.

2