Solve -f - 7 = 4*v + 17, -5*v - 45 = 5*f for v.

-5

Solve 10 = -3*r + 4*l, -6 = -30*r + 35*r + 4*l for r.

-2

Solve 4*n - 12 = -4*i, 3*i - 2 = 2*i for n.

1

Solve -x - 10 = -3*q, -3*q + 5*x = 2*q - 20 for q.

3

Solve 0 = -h - 3*k + 1 - 0, 3*k = -4*h - 5 for h.

-2

Solve -5*o = 7*h + 33, -h - 1 = -o - 2*o for h.

-4

Solve 4*v + r + 3*r = 16, -2*r = -2*v - 8 for v.

0

Solve -2*u = -5*l + 15, 2*u + 5*l = -0*u + 15 for u.

0

Solve 3*i + 5*z - 11 - 8 = 0, -3*z = -6 for i.

3

Solve 3*m + 83 = -4*u + 72, 2*m = -5*u - 19 for m.

3