Write down the solution for this math problem: Solve -124*b - 66*b - 18270 = 12*b + 320*b for b.
answer: -35

Write down the solution for this math problem: Solve -1128*m + 285*m - 1526*m - 54487 = 0 for m.
answer: -23

Write down the solution for this math problem: Solve 421*n + 154 = 443*n for n.
answer: 7

Write down the solution for this math problem: Solve -6 - 9 = 3*a for a.
answer:
-5