Solve -4*r + 8 = 2*n, 0*n - 24 = 4*n - 2*r for n.

-4

Solve -2*w = -h + 9, 0 = -w + 2*h + 180 - 198 for w.

0

Solve 2*w = 2*f + 4, -2*w - 731 = 2*f - 719 for w.

-2

Solve 18*l - 17*l = 1, -5*x = 4*l - 9 for x.

1

Solve -4*i - u = 59 - 74, -3*i = 4*u - 21 for i.

3

Solve -u - 4*i + 9*i - 9 = 0, -4*u = -3*i + 2 for u.

1

Solve -v + 7 = i, 0 = v + 2*i + 10 - 21 for v.

3

Solve 7 = 4*v + 3*t, -3*v - t = -6*t + 31 for v.

-2

Solve -2*t - 10 = -2*u, 2*t - 2 - 23 = -5*u for u.

5

Solve -3*o + 5*q + 35 = 0, -6*o + q = -3*o - 19 for o.

5