question: Teacher asked me this: Solve -8*r - 5 = 3 for r.
++++++++++
answer: -1

question: Teacher asked me this: Solve 0 = 13940*v - 13861*v - 3160 for v.
++++++++++
answer: 40

question: Teacher asked me this: Solve -772 = -72*z - 196 for z.
++++++++++
answer: 8

question: Teacher asked me this: Solve 187*z - 13129 = -12381 for z.
++++++++++
answer:
4