QUESTION: Math problem: Solve -9*i + 3*i = -30 for i.
ANS: 5
QUESTION: Math problem: Solve 2*x - 6 = 5*x for x.
ANS: -2
QUESTION: Math problem: Solve 29*j + 11 = 18*j for j.
ANS: -1
QUESTION: Math problem: Solve -12*w + 22 = -w for w.
ANS:
2