Solve -z - 5*v + 10 = 3, -4*z - 4*v - 4 = 0 for z.

-3

Solve -4*y - 31 = k - 20, 4*y + 20 = -4*k for k.

-3

Solve 5*g - 4*h + 23 = 2*g, -21 = 5*g + 2*h for g.

-5

Solve -71*k - 2*b - 2 = -73*k, 3*k = 2*b + 7 for k.

5

Solve -5*m = -2*m + t - 13, 5*t = -4*m + 21 for m.

4

Solve -5*s = -5*h + 10, -6*s + 2*h = -3*s + 4 for s.

0

Solve -3*s - 4*i = 20, 0*i = -3*s + 3*i + 15 for s.

0

Solve -2*m + 4 = -o, -9*o = -12*o - 5*m + 10 for o.

0

Solve -2*p - 3*h + 0 = 3, 0 = p - h - 6 for p.

3

Solve 5*x = a + 24, -7*x + 3*a + 4 = -9*x for x.

4