question: Teacher asked me this: Solve 3*h + 2 = 11 for h.
++++++++++
answer: 3

question: Teacher asked me this: Solve 195*t = 1543 + 949 + 3642 + 2251 for t.
++++++++++
answer: 43

question: Teacher asked me this: Solve -39*f + 36*f - 4 = 5 for f.
++++++++++
answer: -3

question: Teacher asked me this: Solve -11*o - 2 = -35 for o.
++++++++++
answer:
3