Solve 26*r = 39*r + 13 for r.

-1

Solve 0 = 21*b - 2*b + 38 for b.

-2

Solve -23 = 16*b - 103 for b.

5

Solve -57 = 18*k + 15 for k.

-4

Solve 63*x - 21 = 56*x for x.

3

Solve 0 = -9*i - 101 + 119 for i.

2

Solve w + 5 + 0 = 0 for w.

-5

Solve -20 = -d - 4*d for d.

4

Solve -21*q = -8*q - 26 for q.

2

Solve 0 = 61*k + 29 + 215 for k.

-4