question: Teacher asked me this: Solve -4*a - 3122 = -3138 for a.
++++++++++
answer: 4

question: Teacher asked me this: Solve 0 = -2*m + 6*m + 18*m - 1292 + 302 for m.
++++++++++
answer: 45

question: Teacher asked me this: Solve 66*x - x = -41*x for x.
++++++++++
answer: 0

question: Teacher asked me this: Solve 302 = 94*s - 111 + 131 for s.
++++++++++
answer:
3