Solve 2*i + 0*i + 4 = -2*t, 4 = 3*t + i for t.

3

Solve 4*o - 3*p = -5, 3*p = -14*o + 11*o + 12 for o.

1

Solve 4*f - 20 = 0, 26 = 3*r + 8*f - 4*f for r.

2

Solve -p = -2*d - 2, 0 = 2*p - d - 7 for p.

4

Solve 4*q = -3*h + 31, 3*h + 5 = -2*q + 7*q for h.

5

Solve -2*c - 5*n - 18 = -3, n = 5*c - 3 for c.

0

Solve 0 = -b + 4*a + 6, -11*a - 13 = -4*b - 6*a for b.

2

Solve -n - 5*u + 7*u = -1, 3*n - 3 = -2*u for n.

1

Solve -4*a + 0*i - i + 5 = 0, 0 = 4*a - 2*i + 10 for a.

0

Solve 3*z - 30 = -3*f, -z + 5*f + 20 = 8*f for z.

5