Solve 0 = 2*q - 7*q - 4*s - 21, 7 = -q + 2*s for q.

-5

Solve 4*j - 12 = 0, -a - 11*j + 12*j = 8 for a.

-5

Solve -4*i = 5*b - 28 + 17, 3 = -3*b for i.

4

Solve 0 = 3*k + 4*t - 25 + 18, -24 = 4*k - 3*t for k.

-3

Solve 0 = 5*o + 3*x - 27, -99*o + 96*o - 2*x = -17 for o.

3

Solve 3*q + 21 = -4*v + 2, 5*v + 15 = 5*q for q.

-1

Solve v - 7 = -3*x, -x + 6 = -3*x + 2*v for x.

1

Solve -2*r + 3*s + 10 - 25 = 0, -3 = -s for r.

-3

Solve 2*n - 6 = -2*k, 4*n - 5 = -2*k - 3 for n.

-2

Solve 0 = -5*f - 2*a + 20, 0 = -8*f + 5*f + 3*a + 12 for f.

4