Question:
Solve 6*y - 4*y + 10 = 0 for y..

Answer:
-5

Question:
Solve -7*y - 1631 + 2758 = 42*y for y..

Answer:
23

Question:
Solve 16*z - 220 = -39*z for z..

Answer:
4

Question:
Solve 405819*i = 405912*i + 930 for i..

Answer:
-10