question: Teacher asked me this: Solve -49*i + 7*i - 628 + 124 = 0 for i.
++++++++++
answer: -12

question: Teacher asked me this: Solve -40*w + 38*w = 8 for w.
++++++++++
answer: -4

question: Teacher asked me this: Solve -9*o + 367*o + 2611 = -15*o for o.
++++++++++
answer: -7

question: Teacher asked me this: Solve -283*w - 115 + 491 = -189*w for w.
++++++++++
answer:
4