Solve -2*c - 2*c - 30 = 5*j, 5*j + c = -15 for j.

-2

Solve 0 = 3*b - 4*n + 5, -2*b = -n - 5 for b.

5

Solve -3*f + v + 12 = 0, 2*v + 6 = -4*f + 12 for f.

3

Solve 36*c - 39*c + 9 = 0, -x + 5*c = 14 for x.

1

Solve -s - 14*b = -15*b - 10, 2*b - 15 = -5*s for s.

5

Solve -3*v = 2*y - 3, 10*y - 15*y + 5*v = 30 for y.

-3

Solve 2*x - 5 = 1, 4*x + 8 = -5*m for m.

-4

Solve -n = -2*r - 1 + 10, 5*r = -5*n for r.

3

Solve -23*s + 21*s + 12 = 2*n, -4*s - n + 9 = 0 for s.

1

Solve -2*s + 21 = -7*s - a, -3*s + a - 19 = 0 for s.

-5