question: Teacher asked me this: Solve 0 = 2*n + 13 - 9 for n.
++++++++++
answer: -2

question: Teacher asked me this: Solve -38 = 2*l - 34 for l.
++++++++++
answer: -2

question: Teacher asked me this: Solve -350*g - 100 = 4800 for g.
++++++++++
answer: -14

question: Teacher asked me this: Solve 7*z + 7 + 28 = 0 for z.
++++++++++
answer:
-5