Solve 12 = 4*g - 5*n + n, -n + 15 = 5*g for g.

3

Solve 4*a + 8 = -s, 0*s = -3*s - a - 2 for s.

0

Solve 5*i - 9*i + 10 = -3*o, o + 5*i - 3 = 0 for o.

-2

Solve -5*b - 9*f + 8*f = 20, 0 = -2*b + 2*f + 4 for b.

-3

Solve 1 = 3*d + 152*y - 156*y, -y = 4*d - 14 for d.

3

Solve 3*r = 6*r - 4*b + 14, -3*r = 2*b + 2 for r.

-2

Solve 4*q + 47*y = 42*y - 13, q - y - 8 = 0 for q.

3

Solve -2*y + 0*k = -5*k + 28, 0 = -k + 4 for y.

-4

Solve 5*y - 20 = -30, j + 4*y = -3 for j.

5

Solve 0 = 5*g - 3*i, -3*g + 5*i = -7*g + 37 for g.

3