Solve -64*q + 1 = -4*i - 67*q, -q = -2*i - 13 for i.

-4

Solve 20*q - 23*q - v = 11, -2*v = -2 for q.

-4

Solve 2*d - s - 5 = -d, 4*s - 4 = 0 for d.

2

Solve 3*t + 9 = -4*f, -12 = -0*f + 4*f for t.

1

Solve 7 = -f + 3*x, -4*f - 3*x - 5 = -2*f for f.

-4

Solve 5 = -5*f - 0*f - 5*d, 3*f = -2*d for f.

2

Solve s + 4*s - 5*n + 10 = 0, -n + 14 = 3*s for s.

3

Solve 35 = -5*c + 2*i, 5*c - 71*i = -76*i for c.

-5

Solve -14 = -5*x - 2*t, -35*x = -40*x + 3*t + 4 for x.

2

Solve -4*h + 67 = o + 52, -2*h + 3*o = -11 for h.

4