Solve -4*a = -7*a - t + 10, 0 = 3*a + 3*t - 6 for a.

4

Solve 0 = 4*c + 2*a + 14, -13*a = 4*c - 14*a + 23 for c.

-5

Solve u = -4, 7*u = 4*q + 12*u + 40 for q.

-5

Solve 4*n = -5*a + 22, 5*a - 2*n = -3*n + 13 for a.

2

Solve -b - 3 = -o + b, -3*o = 5*b - 20 for o.

5

Solve 0 = -2*y - 3*r + 18, 3*r + 4 = 3*y + 7 for y.

3

Solve -9*c + 7*c = 5*x + 28, -2*c = -3*x - 4 for c.

-4

Solve -6 = -s - 3*o, 4*s + 4*o + 0 = 8 for s.

0

Solve 3 = -r, -3*j - 7 = r + 5 for j.

-3

Solve 3*x + 5 = v - x, -5*x = 2*v + 16 for v.

-3