question: Teacher asked me this: Solve 1728*y + 451 = 1769*y for y.
++++++++++
answer: 11

question: Teacher asked me this: Solve 25*d - 2460 = -53*d - 86*d for d.
++++++++++
answer: 15

question: Teacher asked me this: Solve -179*u = -620*u - 478*u - 8271 for u.
++++++++++
answer: -9

question: Teacher asked me this: Solve -4*x - 7400 = -14*x - 71*x - 2054 for x.
++++++++++
answer:
66