QUESTION: Math problem: Solve 26*r + 807 = -36*r - 61 for r.
ANS: -14
QUESTION: Math problem: Solve -12619 + 237 = 6254*c + 126 for c.
ANS: -2
QUESTION: Math problem: Solve 171*x + 1000 = 21*x + 50*x for x.
ANS: -10
QUESTION: Math problem: Solve 6745 = -349*i - 249*i - 5409 - 10570 for i.
ANS:
-38