Solve 0 = -57*u + 53*u + 3*r + 20, 4*u = -3*r - 4 for u.

2

Solve -3*b - 12 = 0, b + 12 = -k - 2*b for k.

0

Solve -9*o + 12*o + 2*q + 27 = 0, 0 = 5*o - 3*q + 45 for o.

-9

Solve j - 7*l = -6*l + 3, j - 19 = 5*l for j.

-1

Solve 0 = 4*w + 5*n - 130 + 115, 0 = -5*w + 4*n + 29 for w.

5

Solve 2*w = 4*s - 6, 5*s = 12*w - 10*w + 5 for w.

-5

Solve -4*m + 6 = -m - 3*o, 3*o = -3*m for m.

1

Solve -2*a + 3 = i, -3*a - 41 = -5*i - 13 for a.

-1

Solve 5*l + 5*c - 6 = -11, l + 2*c = 0 for l.

-2

Solve -10 = -s - 2*b, -3*s + 7*s - b - 13 = 0 for s.

4