Solve 3*z = -3*a - 21, 0 = z + 4 - 2 for a.

-5

Solve 2*c + 3*c - 3*m = -31, -5*m = -10 for c.

-5

Solve 0 = o + 4, 5*p + 0*p = 2*o + 18 for p.

2

Solve 2*d - 3*d + 3*s + 13 = 0, -5*d - 5*s = 15 for d.

1

Solve j = -3*b - 3, 3*b + j = 5*j - 18 for b.

-2

Solve f - l + 4*l + 4 = 0, 2*f + 5*l = -6 for f.

2

Solve -7 = -o - 3*a, 4*o - 3*a + 5*a = -2 for o.

-2

Solve -2*j + 25 = -3*s, -4*j + 0*j = -5*s - 45 for j.

5

Solve d + 11 = -14*o + 18*o, -13 = -5*o + 2*d for o.

3

Solve 2*u = -4*k + 10, -2*k + k = -3*u + 8 for u.

3