Solve -5*z + 12 + 13 = 5*r, 5*z + 15 = 3*r for r.

5

Solve 4*u + 4*o + 8 = 0, 2*u + o - 24 = -28 for u.

-2

Solve 8 = 4*s, -p + 4*s - 11 + 4 = 0 for p.

1

Solve -g + 4*j = -140 + 124, 4*j + 12 = 2*g for g.

-4

Solve 25 = -5*g, 12*g - 37 = -4*d + 17*g for d.

3

Solve 5*a - 5*o = 4*a + 9, -3*o = 4*a - 13 for a.

4

Solve w + 4 = 0, 0 = h + 4*h - 2*w - 23 for h.

3

Solve 25 = 6*g - 7*g + 5*f, 0 = 4*g + 3*f - 15 for g.

0

Solve -5*d - 4*c = -8, -d - c + 10 = -3*c for d.

4

Solve -o - 5*r = 10 - 5, r + 7 = o for o.

5