Solve -r - 5 = u, 9 = -5*r + 6*u - 5 for r.

-4

Solve 0 = -4*w + r + 12, w + 5*r = 3*w - 24 for w.

2

Solve 0 = 4*q + 4*o - 4, -5*o - 35 + 10 = -q for q.

5

Solve 2*b - 4 = 5*x, -x - 9 = 5*b - 4*x for b.

-3

Solve -4*h + 5 = -5*p, p - 5*h - 20 = -0*p for p.

-5

Solve -4*g + 28 = 4*j, 12*g + 9 = 13*g + 2*j for g.

5

Solve 2*y - y + 5*f + 3 = 0, 3*y + 2*f - 4 = 0 for y.

2

Solve 3*n - 6 = -2*y, -y = 2*y for n.

2

Solve 0 = 5*x - 5*l + 5, 0 = -x + 2*l - 4*l + 11 for x.

3

Solve m = 4*r + 9, 3*m + 2*r - 6 = -21 for m.

-3