Solve x = 3*o - 7, -5*o = 12*x - 8*x - 23 for o.

3

Solve 4*j + 4*w = -36, 5*j - 20*w + 41 = -24*w for j.

-5

Solve 0 = 2*q + 2*q - a + 19, 4*a = -3*q for q.

-4

Solve 0 = 3*q + 5*o + 19, 3*o + 17 = 11 for q.

-3

Solve 4*u - 6 = k, -u + 2 = k + 8 for k.

-6

Solve 3*u - o + 6 = 9, -12 = 3*u + 4*o for u.

0

Solve 72*u = 2*f + 67*u + 8, 3*f + 2*u - 7 = 0 for f.

1

Solve 5*l = -7*m + 3*m + 5, 5*m = 3*l - 3 for m.

0

Solve 2*z + 5*t = 8, 0 = -3*z + 29*t - 31*t + 12 for z.

4

Solve 14*x + 31 = -4*r + 11*x, r - 4*x - 16 = 0 for r.

-4