Solve 4*a - 781*v = -785*v + 4, 2*a - v = -10 for a.

-3

Solve -6*s + 9*s - 10 = -c, 2*c = 4*s - 30 for s.

5

Solve 3*f = -x - 3, -3*f - 22 = 3*x - 13 for f.

0

Solve 5*x - 3*x + 4*f + 10 = 0, -5*x + 20 = f for x.

5

Solve 3*s = -3*a + 2*a + 7, -2*s + 4*a + 28 = 0 for s.

4

Solve 0 = 2*p - 4*c - 20, -p - c - 10 = -5 for p.

0

Solve -a + 6 = 3*k, -4*a = -a - 3*k + 6 for a.

0

Solve -5*z + 4*g - 6 = 0, -3*g = 15*z - 13*z - 16 for z.

2

Solve 0 = -3*v + w - 7, 2*v = 15*w - 16*w + 2 for v.

-1

Solve h + 40*y - 27 = 36*y, 2*h - y = 0 for h.

3