QUESTION: Math problem: Solve -84*v - 18*v - 26*v + 640 = 0 for v.
ANS: 5
QUESTION: Math problem: Solve 252494*d - 65270 = 253029*d for d.
ANS: -122
QUESTION: Math problem: Solve -79*i - 94*i = 45*i - 143*i - 1650 for i.
ANS: 22
QUESTION: Math problem: Solve 5910*o - 17053 + 3368 = -5939*o + 11688*o for o.
ANS:
85