question: Teacher asked me this: Solve -71*g + 421 + 281 = -17*g for g.
++++++++++
answer: 13

question: Teacher asked me this: Solve 4*g - 133 = -121 for g.
++++++++++
answer: 3

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

question: Teacher asked me this: Solve -2*n = -70 + 72 for n.
++++++++++
answer:
-1