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Solve:
15(y - 4) - 2(y - 9) + 5(y + 6) = 0
15(y - 4) - 2(y - 9) + 5(y + 6) = 0
⇒
15y - 60 - 2y + 18 + 5y + 30 = 0
⇒
18y = 12
8