question: Teacher asked me this: Solve 0 = 6*y - 41*y + y - 612 for y.
++++++++++
answer: -18

question: Teacher asked me this: Solve -2*p + 3*p = -4 for p.
++++++++++
answer: -4

question: Teacher asked me this: Solve 1213 = -198*d - 12*d - 665*d - 7537 for d.
++++++++++
answer: -10

question: Teacher asked me this: Solve -226*r + 135*r = -115*r + 360 for r.
++++++++++
answer:
15