Write down the solution for this math problem: Solve 462*o - 7974 = -113*o + 132*o for o.
answer: 18

Write down the solution for this math problem: Solve -b - 8*b = -12*b + 18 for b.
answer: 6

Write down the solution for this math problem: Solve 9*j - 21*j = -60 for j.
answer: 5

Write down the solution for this math problem: Solve 9*b - 40 = b for b.
answer:
5