Question:
Solve 2*y + 829 = 779 for y..

Answer:
-25

Question:
Solve 90*v = 21*v - 552 for v..

Answer:
-8

Question:
Solve -25 = -v - 21 for v..

Answer:
4

Question:
Solve -2755*s - 1293*s + 42287 - 173858 = 176077 for s..

Answer:
-76