Solve 0*f + 4 = 3*r - 2*f, 0 = -3*r + 3*f for r.

4

Solve 0 = 4*n - 4*t + 24, -9*n + t = -3*n + 31 for n.

-5

Solve 9*n + 2*o + 1 = 0, n = 2*n + 4*o + 19 for n.

1

Solve b + 24 = 4*o, -12 = -b - 3*o - 2*o for b.

-8

Solve 0 = -3*m + 5*c - 13, 5*c = 4*m + 9 - 0 for m.

4

Solve c - 3*g - 1 = 2*g, 5*g = 4*c - 4 for c.

1

Solve 0 = -5*j + 5*u - 13 - 22, 2*j = u - 10 for j.

-3

Solve 2*a = 5*o, 4*a - 3 = 5*o - 13 for a.

-5

Solve 0*q = -3*h - 3*q - 3, -3 = 2*h + 3*q for h.

0

Solve -5*w - 22 = -2*a, -5*a - 4*w - 11 + 0 = 0 for a.

1