QUESTION: Math problem: Solve -959 = 98*x - 235*x for x.
ANS: 7
QUESTION: Math problem: Solve -29*z = -59*z + 90 for z.
ANS: 3
QUESTION: Math problem: Solve 11 + 17 = -4*i for i.
ANS: -7
QUESTION: Math problem: Solve -1221*a + 1215*a = -36 for a.
ANS:
6