Q: Solve -187*q = -73*q + 1140 for q.

A: -10

Q: Solve -60*z + 400 - 229 = -489 for z.

A: 11

Q: Solve -60*a + 63 = -37*a - 52 for a.

A: 5

Q: Solve -150*z - 1041 - 3423 = -85*z + 79*z for z.

A:
-31