QUESTION: Math problem: Solve -7*k + 20*k = -13 for k.
ANS: -1
QUESTION: Math problem: Solve 18*h + 18 - 126 = 0 for h.
ANS: 6
QUESTION: Math problem: Solve -768*d + 18205 = 276*d + 117385 for d.
ANS: -95
QUESTION: Math problem: Solve -5*d + 11 - 21 = 0 for d.
ANS:
-2