Solve 2*o + p = 7*o - 12, 0 = o + p for o.

2

Solve 4*l = -d + 12, 18 = -2*l + 5*l + 3*d for l.

2

Solve -4*s - 2*b - 14 = -26, s = 3*b + 10 for s.

4

Solve 0 = -3*u - 3*k + 6, -4*k + 20 = -4*u - 4 for u.

-2

Solve 5*y = 5*c - 20, -5*y = 2*c - c + 20 for y.

-4

Solve 4*s + 5*i + 7 = -1, -6 = 3*s - 4*i for s.

-2

Solve h + 31 = -2*h - 4*u, 4*h = 5*u for h.

-5

Solve -3*l - 15 = 2*d, -6*l = -4*d - 7*l - 15 for d.

-3

Solve -2*w - 10 = 4*s, -3*s = -2*w + s + 30 for w.

5

Solve 0 = 3*b + y + 2, -5*y + 47 = -2*b + 23 for b.

-2