Question:
Solve 0 = -2063*a + 2097908 - 1939057 for a..

Answer:
77

Question:
Solve 0 = -15*v + 44*v + 14*v - 559 for v..

Answer:
13

Question:
Solve -43 = 6*x - 25 for x..

Answer:
-3

Question:
Solve -30*a + 187 = -5*a - 42*a for a..

Answer:
-11