Solve 2*a - 23 = 5*u - 31, -4*a = -5*u + 6 for a.

1

Solve -4*y - 20 = -s, -4*s + 7*y - 12*y - 4 = 0 for s.

4

Solve 2*i = 3*a + 14, 33*a - 31*a = 2*i - 12 for i.

4

Solve 5*c + 3*v - 2 = 0, -c + v = c + 8 for c.

-2

Solve -v + 1 = -3*x, 5*x + 1 = 4*x + v for x.

0

Solve -3*c = -15, 39*u - 44*u = -2*c + 35 for u.

-5

Solve 0*g + u = -3*g + 10, 3*u = -15 for g.

5

Solve -2*w = 5*k, -k - 3*w = -66 + 53 for k.

-2

Solve -3*r - 3*y = 6, -4*r + 6*y + 17 = -5*r for r.

1

Solve 10 = 5*s, 2*w = -0*w + 3*s for w.

3