question: Teacher asked me this: Solve 55 = 47*m - 58*m for m.
++++++++++
answer: -5

question: Teacher asked me this: Solve 7*d + 612 = 535 for d.
++++++++++
answer: -11

question: Teacher asked me this: Solve 34*u = -1670303 + 1669181 for u.
++++++++++
answer: -33

question: Teacher asked me this: Solve -15*z + 5*z = -40 for z.
++++++++++
answer:
4