question: Teacher asked me this: Solve -23*t - 132 = -40 for t.
++++++++++
answer: -4

question: Teacher asked me this: Solve -520 - 600 = -173*a + 91 for a.
++++++++++
answer: 7

question: Teacher asked me this: Solve -106*s + 228 = -125*s for s.
++++++++++
answer: -12

question: Teacher asked me this: Solve 18758 = -223*u + 3371 for u.
++++++++++
answer:
-69