Solve -2*z + 4 - 15 = -3*v, 3*v - 25 = -5*z for z.

2

Solve t + 9 = 3*u, 3*u = 5*t + 1 - 16 for t.

6

Solve -h = 0, 3*a = 6*a - 4*h - 9 for a.

3

Solve a + 3*a + 3*f - 15 = 0, -2*a = -f + 5 for a.

0

Solve i - 7*h - 18 = -3*h, 4*i = 3*h + 20 for i.

2

Solve -8 = -4*d, 3*w + 3*d = -0*w + 18 for w.

4

Solve -5*q + 8*q - 11 = 2*u, 4*u + 12 = -4*q for u.

-4

Solve 4*w - 3*i + 5 = 0, -4*w = 78*i - 74*i + 12 for w.

-2

Solve -5*w - 20 = 0, 4*w + 10 = -0*s - 2*s for s.

3

Solve 0 = 5*g + 3*r - 6, -2*r - 10 = -5*g - 7*r for g.

0