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2(x - 1 - 16)/4 - 3(2x - 9)/9 = 9
2(x - 17)/4 - 3(2x - 9)/9 = 9
(2x - 34)/4 - (6x - 27)/9 = 9
(18x - 306 - 24x + 108)/36 = 9
(18x - 24x - 306 + 108)/36 = 9
(-6x - 198)/36 = 9
-6x - 198 = 9(36)
-6x - 198 = 324
-6x = 324 + 198
x = 522/-6
x = 87