Solve -3*r + 2*j + 15 = 0, r - 4*r + 3*j + 15 = 0 for r.

5

Solve -c - 4*l - 7 - 6 = 0, 3*c = 3*l - 9 for c.

-5

Solve 0 = 2*b - w - 6, 0 = 5*b + w - 14 - 1 for b.

3

Solve 0 = -3*r + c + 3*c - 4, r + 3 = 3*c for r.

0

Solve -4*h + 3*d - 38 - 1 = 0, 4*h + 2*d = -14 for h.

-6

Solve 4*s - 4*w = -12, w - 18 - 5 = 5*s for s.

-5

Solve -2*d + o = -3, -3*d + 6*o + 8 = 8*o for d.

2

Solve 0 = 5*x + 5*j + 20, -4*x - 3*j - 19 = -8 for x.

1

Solve 3*j - 39 = 4*a - 10, 5*a = j - 28 for a.

-5

Solve 5*t = 75*n - 74*n + 6, n + 4*t = 3 for n.

-1