question: Teacher asked me this: Solve -49*b + 108 = -186 for b.
++++++++++
answer: 6

question: Teacher asked me this: Solve -31178 + 15574 + 15448 = 13*a for a.
++++++++++
answer: -12

question: Teacher asked me this: Solve -402*h - 299*h - 144 = 30*h - 14764 for h.
++++++++++
answer: 20

question: Teacher asked me this: Solve -14*d - 28*d + 686 = 14 for d.
++++++++++
answer:
16