Solve -2*h - h = -2*f + 7, 2*f + 3*h = 13 for f.

5

Solve 12 = -2*c - 5*x, -4*x - 5 = c + 4 for c.

-1

Solve 31 = -2*s - 2*s + 3*z, 7 = 2*s + 3*z for s.

-4

Solve 0 = -5*l + 4*k - 3, 3*l = 2*k - 22 + 21 for l.

1

Solve -m - 3 + 1 = 8*h, 3*h - 2 = m for m.

-2

Solve 0 = 2*b + 4*z + 16, 8*z - 7 = -b + 9*z for b.

2

Solve 0*z + 2*d = 2*z + 4, z = -2*d - 11 for z.

-5

Solve 4*h = 13 + 3, -2*h + 3 = -5*n for n.

1

Solve 0*n + 4*n + 16 = 3*v, -2*v = -2*n - 8 for v.

0

Solve -5*f = m + m + 6, 5*m = -3*f + 4 for f.

-2