question: Teacher asked me this: Solve 731 = -25*u - 48*u - 948 for u.
++++++++++
answer: -23

question: Teacher asked me this: Solve 368*s + 11338 - 138514 = 5667*s for s.
++++++++++
answer: -24

question: Teacher asked me this: Solve 20*w + 10*w - 46*w + 32*w = -160 for w.
++++++++++
answer: -10

question: Teacher asked me this: Solve 15*r - 68 - 37 = 0 for r.
++++++++++
answer:
7