Solve -a + 5*a = 20 for a.

5

Solve -10 = -3*f - 1 for f.

3

Solve -473*r - 12 = -471*r for r.

-6

Solve -12*z = -30 - 6 for z.

3

Solve -95 + 116 = 7*o for o.

3

Solve 108*g - 117*g = 0 for g.

0

Solve -7*p = -49*p for p.

0

Solve -8*y = -20*y - 108 for y.

-9

Solve -32 = -9*w - 5 for w.

3

Solve -406 = -16*f - 454 for f.

-3