question: Teacher asked me this: Solve 0 = -0*w + 8*w + 40 for w.
++++++++++
answer: -5

question: Teacher asked me this: Solve 162*d - 591 = -63*d + 2109 for d.
++++++++++
answer: 12

question: Teacher asked me this: Solve 0 = -3*l + 37 - 46 for l.
++++++++++
answer: -3

question: Teacher asked me this: Solve -109*a + 1650 = 40*a + 16*a for a.
++++++++++
answer:
10