question: Teacher asked me this: Solve 4*o - 1068 + 12948 = -216*o for o.
++++++++++
answer: -54

question: Teacher asked me this: Solve -70*a - 174*a = 20*a + 186*a - 5850 for a.
++++++++++
answer: 13

question: Teacher asked me this: Solve 69*u - 72*u - 9 = 0 for u.
++++++++++
answer: -3

question: Teacher asked me this: Solve 68 = -31*c + 278 - 1171 for c.
++++++++++
answer:
-31