question: Teacher asked me this: Solve -4*a - 778 + 758 = 0 for a.
++++++++++
answer: -5

question: Teacher asked me this: Solve 0 = -7*v + 264 - 152 for v.
++++++++++
answer: 16

question: Teacher asked me this: Solve 12*f = -7*f for f.
++++++++++
answer: 0

question: Teacher asked me this: Solve 106*i = 9*i + 50*i - 1269 for i.
++++++++++
answer:
-27