question: Teacher asked me this: Solve 3*u - 36 - 90 + 72 = 0 for u.
++++++++++
answer: 18

question: Teacher asked me this: Solve 164*t - 28*t - 68*t = -142*t - 19740 for t.
++++++++++
answer: -94

question: Teacher asked me this: Solve -257*s + 2934 = -664 for s.
++++++++++
answer: 14

question: Teacher asked me this: Solve -2*u - 29 - 66 = -7*u for u.
++++++++++
answer:
19