Solve -3*r + 43*y = 39*y - 5, 4*r + 2*y = -8 for r.

-1

Solve i = 4*r - 10, -11*i + 15*i + 1 = 3*r for r.

3

Solve -4*o - t + 19 = 0, -5*o + 4*t - 15 = -23 for o.

4

Solve -5*t + 6*t + c + 8 = 0, 5*c = -20 for t.

-4

Solve 2*a - 7*a = -3*c - 23, 5*a + 5*c = 15 for a.

4

Solve 0 = -b + 3, 0 = -4*u + 5*b - 11 for u.

1

Solve 0 - 10 = 2*i + 4*t, 3*i - 3*t = 30 for i.

5

Solve -3*l + 4 = 2*f, -l - 2*l = 5*f - 19 for l.

-2

Solve -d - 7 = -2*k, -d - 11 + 5 = -k for k.

1

Solve -4*d - 8*v - 31 = -11*v, 3*d + 2*v + 2 = 0 for d.

-4