question: Teacher asked me this: Solve 26*o = 7*o - 57 for o.
++++++++++
answer: -3

question: Teacher asked me this: Solve 0 = -56*r + 1251 - 299 for r.
++++++++++
answer: 17

question: Teacher asked me this: Solve 7291 = -26*v + 7239 for v.
++++++++++
answer: -2

question: Teacher asked me this: Solve -208*v + 432 = 673 - 5233 for v.
++++++++++
answer:
24