Write down the solution for this math problem: Solve -1914*o = -2115*o + 2211 for o.
answer: 11

Write down the solution for this math problem: Solve -29*s + 196 = 631 for s.
answer: -15

Write down the solution for this math problem: Solve -56*i - 251670 + 257390 = -i for i.
answer: 104

Write down the solution for this math problem: Solve -12*a + 10 = -17*a for a.
answer:
-2