question: Teacher asked me this: Solve -99142 + 42339 - 158477 = 2526*a - 654*a for a.
++++++++++
answer: -115

question: Teacher asked me this: Solve -84*y - 85*y = -155*y + 168 for y.
++++++++++
answer: -12

question: Teacher asked me this: Solve 2*q - 49 = -57 for q.
++++++++++
answer: -4

question: Teacher asked me this: Solve 280*r + 108*r + 895 = 15*r - 224 for r.
++++++++++
answer:
-3