Q: Solve -3212*a + 2188*a + 105287 = -2207*a for a.

A: -89

Q: Solve -12*s = -142*s - 3575 - 4095 for s.

A: -59

Q: Solve -93*k + 42*k = -7*k + 616 for k.

A: -14

Q: Solve 72*v = 161*v + 10*v + 5049 for v.

A:
-51