Solve 0 = 5*s - 3*i - 19, 0 = -2*s + 3*i + 18 - 5 for s.

2

Solve -4*y - 3 = -a, 3 = -2*a + 2*y - 3 for a.

-5

Solve 2 = 2*j - j + 3*q, 5*q + 10 = -5*j for j.

-4

Solve 0 = -3*z + 5*v - 7, 4*z - 62*v + 58*v + 12 = 0 for z.

-4

Solve 2*u - 7*u - 20 = 5*t, 4*u + 12 = 0 for t.

-1

Solve -5*r = j + 10, 5 - 15 = -5*j + 5*r for j.

0

Solve -3*y + 2*q = 0, -y + 9*q = 10*q for y.

0

Solve -y - 18 = -5*y - 2*h, y = -5*h for y.

5

Solve -6*g + g + 30 = -d, -4*d - 25 = -g for g.

5

Solve v = 2*m - 6, -3*v + 2 - 10 = -4*m for v.

4