Solve -2 - 38 = 10*b for b.

Solve 140*r = 138*r + 8 for r.

4

Solve -5*d = 2*d + d for d.

0

Solve -40 = -77*u + 85*u for u.

-5

Solve 161*v = 164*v + 6 for v.

-2

Solve -w = 40 - 38 for w.

-2

Solve -1132 + 1177 = -9*n for n.

-5

Solve -5 = 4*k - 9 for k.

1

Solve 0 = 5*r + 68 - 53 for r.

-3

Solve 60*n + 8 = 64*n for n.

2

Solve 0 = -33*k - 126 - 138 for k.

-8