Write down the solution for this math problem: Solve 51*g - 48 = 59*g for g.
answer: -6

Write down the solution for this math problem: Solve 27*r - 25*r - 8 = 0 for r.
answer: 4

Write down the solution for this math problem: Solve 40*a = -1318 + 1918 for a.
answer: 15

Write down the solution for this math problem: Solve -438*a = -57*a - 8001 for a.
answer:
21