question: Teacher asked me this: Solve -5953 = 245*r - 609*r - 32161 for r.
++++++++++
answer: -72

question: Teacher asked me this: Solve 107*x - 135 = 92*x for x.
++++++++++
answer: 9

question: Teacher asked me this: Solve 297960*u - 297717*u + 3402 = 0 for u.
++++++++++
answer: -14

question: Teacher asked me this: Solve 0 = -2212569*z + 2212604*z - 420 for z.
++++++++++
answer:
12