Write down the solution for this math problem: Solve -21*o = 4*o + 75 for o.
answer: -3

Write down the solution for this math problem: Solve -174*i - 859 + 1630 + 3753 = 0 for i.
answer: 26

Write down the solution for this math problem: Solve -11*v = 10 + 122 for v.
answer: -12

Write down the solution for this math problem: Solve -5*w - 6 = w for w.
answer:
-1