question: Teacher asked me this: Solve -97*c + 38 = -78*c for c.
++++++++++
answer: 2

question: Teacher asked me this: Solve -3 = -27*r + 26*r + 2 for r.
++++++++++
answer: 5

question: Teacher asked me this: Solve 3513427*g - 17340 = 3513138*g for g.
++++++++++
answer: 60

question: Teacher asked me this: Solve -183*u + 186*u - 21 = 0 for u.
++++++++++
answer:
7