Question:
Solve 18*v = 31*v + 4*v + 442 for v..

Answer:
-26

Question:
Solve 0 = 4*k - 8*k + 8 for k..

Answer:
2

Question:
Solve -656*x - 157*x - 57751 - 42706 = 76*x for x..

Answer:
-113

Question:
Solve 53*s + 70 + 195 = 0 for s..

Answer:
-5