Solve 0 = -5*o + 4*x + x + 15, 3*o - 2*x - 7 = 0 for o.

1

Solve 5*d + 0*d + x - 11 = 0, 0 = -2*d + 3*x + 18 for d.

3

Solve 16 = -4*n + 8*n, n = -5*h - 21 for h.

-5

Solve -3*c = 9, -44*s + 40*s = -2*c + 18 for s.

-6

Solve c + 7 = k, 2*k + 7 = 5*k + 4*c for k.

5

Solve -5*h - 8 = 3*l - 0, -4 = -l for h.

-4

Solve -10 = 11*q - 9*q + y, -18 = 3*q + 3*y for q.

-4

Solve 4*k = -5*c + 5 + 3, 3*c = -k + 9 for k.

-3

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

2

Solve -2*r - 10 = -7*r, 0 = -b - 3*r + 5 for b.

-1