question: Teacher asked me this: Solve -31*z - 242 - 460 = 23*z for z.
++++++++++
answer: -13

question: Teacher asked me this: Solve 42 = -14238*o + 14232*o for o.
++++++++++
answer: -7

question: Teacher asked me this: Solve 62 = -7*t + 62 for t.
++++++++++
answer: 0

question: Teacher asked me this: Solve 340*f + 406 + 1892 = -103*f - 803 for f.
++++++++++
answer:
-7