question: Teacher asked me this: Solve -3 + 12 = -3*h for h.
++++++++++
answer: -3

question: Teacher asked me this: Solve -180 + 50 = 13*z for z.
++++++++++
answer: -10

question: Teacher asked me this: Solve -4370 = -1840*v + 591 + 6444 - 2205 for v.
++++++++++
answer: 5

question: Teacher asked me this: Solve -214*o = -710*o - 453*o + 49*o + 4500 for o.
++++++++++
answer:
5