Solve 0 = 5*o + 5*r - 60 + 90, 0 = -2*r - 4 for o.

-4

Solve -15 = -b + 4*p, 0 = -3*b - 0*p - 5*p - 40 for b.

-5

Solve -5*l = -5*p - 5, 17 = 3*l - 0*p + 4*p for l.

3

Solve -k + s = 10, -s + 5 = 2*k + 10 for k.

-5

Solve -3*n = 3*g + 3, -5*n - 33*g = -38*g + 45 for n.

-5

Solve 0 = f + 5*j + 3 + 4, -3*j = 4*f - 6 for f.

3

Solve 12 = 4*z, 2 = 2*p - 3*z + 17 for p.

-3

Solve -18 = 4*f - 3*s - 53, -4*s = 20 for f.

5

Solve 25 = 2*g + 19, z - 3*g = -8 for z.

1

Solve d = 2*o - 12, -10*o - 2*d = -7*o - 4 for o.

4