Solve 0 = -s + 3*c + 9, 4*c - 9 = -3*s + 7*c for s.

0

Solve -2 = -4*o - s - 15, 5*s + 1 = -4*o for o.

-4

Solve 1 = -f - 4*b, 7*f - b = 8*f + 4 for f.

-5

Solve -3*p - 17 = -n, n + 2*p = -0*p - 3 for n.

5

Solve 35*s - 36*s = -3*a - 16, 0 = -4*s - 5*a - 55 for s.

-5

Solve 0 = -s - u + 5, -2*s - 5*u + 5 = -8 for s.

4

Solve 3*o - 2*b + 3 = 0, -o - 5 = 4*o - b for o.

-1

Solve 0*q - 12 = 5*l + 3*q, -l = 2*q + 8 for l.

0

Solve 4*u = 0, 0 = -4*n + 2*n + 2*u - 10 for n.

-5

Solve -x = -4*a + 6, -a - 3*x - x = -10 for a.

2