question: Teacher asked me this: Solve 59*r + 360 = -21*r + 20*r for r.
++++++++++
answer: -6

question: Teacher asked me this: Solve -713*a = -719*a - 6 for a.
++++++++++
answer: -1

question: Teacher asked me this: Solve -3602 = 249*q + 1378 for q.
++++++++++
answer: -20

question: Teacher asked me this: Solve 0 = 9*o + 26 + 1 for o.
++++++++++
answer:
-3