QUESTION: Math problem: Solve 70*z + 16*z + 352 = -2*z for z.
ANS: -4
QUESTION: Math problem: Solve -12*r + 41*r = -52*r + 729 for r.
ANS: 9
QUESTION: Math problem: Solve -15*x - 4698 + 4690 = -7*x for x.
ANS: -1
QUESTION: Math problem: Solve -265 = -135*d - 1040 - 170 for d.
ANS:
-7