Write down the solution for this math problem: Solve -115*a = -119*a + 28 for a.
answer: 7

Write down the solution for this math problem: Solve -2302*a - 2260*a = -6897*a + 2278*a - 2907 for a.
answer: -51

Write down the solution for this math problem: Solve -35*r - 127*r - 26860 = 180*r - 26*r for r.
answer: -85

Write down the solution for this math problem: Solve -125*y + 425*y + 108*y + 5353 = 49417 for y.
answer:
108