Solve -5*u + 2*w = -31, -w = 3*u - 5*u + 13 for u.

5

Solve 4*c - 7*c + 5*i - 37 = 0, -2*c = 4*i - 12 for c.

-4

Solve -5*p = h + 2 - 14, 4*p - 4*h - 24 = 0 for p.

3

Solve -3*s = -s - 4*j + 6, 0 = -s - j for s.

-1

Solve -4*f - 4*j + 7 + 17 = 0, 14 = 3*f + 2*j for f.

2

Solve 0 = m + 4*q - 3, 0 = -5*m + 170*q - 166*q + 15 for m.

3

Solve 96 - 57 = -n + 4*h, -h + 12 = -n for n.

-3

Solve 0 = -r - 3*u + 6 - 1, 0 = -2*r - u + 10 for r.

5

Solve -4*o + 4 = -3*c - 0, -5*c - 12 = -4*o for o.

-2

Solve -2*o + 6 = 3*h, 4*o = 25*h - 29*h + 4 for h.

4