Solve a - 15 = -5*n, 0 = 6*a - 3*a for n.

3

Solve 2*f = u + 9, -f - 12 = -4*f + u for f.

3

Solve -3*b + 8*b - 3*m = 17, -5*m - 18 = 2*b for b.

1

Solve -3*y = 2*z + 7, -z + 2*z + 6 = -4*y for y.

-1

Solve 0 = 5*b - 2*w + 30 - 3, -b = 5*w for b.

-5

Solve c + y - 2 = 0, 18 + 1 = -3*c + 2*y for c.

-3

Solve -4*s - 27 = 5*h, 3*h + 4*s = -10 - 11 for h.

-3

Solve b + 5*c = -b + 14, 0 = -4*b + c - 16 for b.

-3

Solve -l - 3*k - 2 = 3*l, 2*l - k = -6 for l.

-2

Solve -3*a + 6 = 4*q, 3 + 2 = -q - 4*a for q.

3