question: Teacher asked me this: Solve 19*s - 31*s = 252 for s.
++++++++++
answer: -21

question: Teacher asked me this: Solve -26*g + 14*g = 19 + 5 for g.
++++++++++
answer: -2

question: Teacher asked me this: Solve 13129*r - 257365 - 18344 = 0 for r.
++++++++++
answer: 21

question: Teacher asked me this: Solve -2651*i - 658*i + 30477 + 27670 = -8033 for i.
++++++++++
answer:
20