Write down the solution for this math problem: Solve 86*o + 32 = 78*o for o.
answer: -4

Write down the solution for this math problem: Solve 148*i - 70*i - 62*i - 400 = 0 for i.
answer: 25

Write down the solution for this math problem: Solve -m + 12*m = -99 for m.
answer: -9

Write down the solution for this math problem: Solve -8393982*s + 8393979*s + 39 = 0 for s.
answer:
13