Q: Solve -312*f = 26*f + 136*f - 19908 for f.

A: 42

Q: Solve 0 = -4*c + 7 + 1 for c.

A: 2

Q: Solve -48*n + 526 = -140 + 42 for n.

A: 13

Q: Solve -10*x = -20*x for x.

A:
0