Q: Solve -4017*b + 18600 = 78855 for b.

A: -15

Q: Solve 0 = -37*a + 46*a + 5 + 13 for a.

A: -2

Q: Solve 0 = -7*s - 16*s - 69 for s.

A: -3

Q: Solve 40*q - 4788 = 92*q - 78*q - 12*q for q.

A:
126