Solve -3*b + 9*u + 42 = 0, 23*b + 11 = 27*b + 3*u for b.

5

Solve 0 = -5*s - 4*k + 3*k + 12, 3*k - 6 = 0 for s.

2

Solve 5*b + 0*g - 2*g = -3, 0 = 2*b - 5*g + 18 for b.

1

Solve -4*i + 7 = -2*o - 1, i - 2 = o for o.

0

Solve -q = -3*v + 16, -2*v + 20 = -5*q + 5 for v.

5

Solve -r + 15 = 3*i, 0 = -0*i + 3*i - 15 for r.

0

Solve 3*w = 3*s - 21, -11 = 3*w + s - 6 for w.

-3

Solve j - b - 2 + 0 = 0, 5*b - 30 = -5*j for j.

4

Solve 0 = -3*a - 3*v + 15, -25*a - 17 = -29*a - v for a.

4

Solve -4*k + 32 + 0 = 4*x, 3*k = -2*x + 19 for k.

3