question: Teacher asked me this: Solve -61*v - 965 + 389 = 461 for v.
++++++++++
answer: -17

question: Teacher asked me this: Solve -6635 = 332*s + 232*s - 127*s + 15215 for s.
++++++++++
answer: -50

question: Teacher asked me this: Solve -8*z + 157 - 769 = 4*z + 5*z for z.
++++++++++
answer: -36

question: Teacher asked me this: Solve 640*d = 634*d + 48 for d.
++++++++++
answer:
8