Solve 4 = a, 12 = -2*r + 3*a - 6 for r.

-3

Solve 2*z = -2*f + 6, -5*f + 132 = 2*z + 135 for z.

6

Solve 0 = 4*r - 12, 3*s - 5*r + 16 = 2*s for s.

-1

Solve -5*s + x = 255 - 250, s + 3*x + 1 = 0 for s.

-1

Solve -2*i - 2 = 0, -p - 125*i + 6 = -124*i for p.

7

Solve 5*q + 2 = -4*d, 2*q - q = -3*d - 7 for q.

2

Solve 144*f + g + 1 = 143*f, -3*f - 1 = g for f.

0

Solve 2*t + h - 1 + 0 = 0, t = -2*h + 8 for t.

-2

Solve -2*a + 2*f + 20 = 0, 29 = -2*f + 19 for a.

5

Solve 0 = 2*w + 5*g - 3*g - 4, 8 = 3*w + 4*g for w.

0