Solve 13*x + 7 = 72 for x.

5

Solve 61*v - 287 = 18 for v.

5

Solve -7*o - 6*o = 13 for o.

-1

Solve -23*i = -15*i for i.

0

Solve -190*j + 170*j - 80 = 0 for j.

-4

Solve -5*b = b + 6 for b.

-1

Solve 0 = -0*g - 5*g - 15 for g.

-3

Solve 0 = 2*b - 4*b - 6 for b.

-3

Solve -8*r - 645 = -597 for r.

-6

Solve 0 = -136*f + 38*f + 392 for f.

4