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(2/9)*(27*x-54)-((3/4)*x) = 0
(2/9)*(27*x-54)+(-3/4)*x = 0
2/9*(27*x-54)+(-3*x)/4 = 0
(2/9*4*(27*x-54))/4+(-3*x)/4 = 0
2/9*4*(27*x-54)-3*x = 0
21*x-48 = 0
(21*x-48)/4 = 0
(21*x-48)/4 = 0 // * 4
21*x-48 = 0
21*x-48 = 0 // + 48
21*x = 48 // : 21
x = 48/21
x = 16/7
x = 16/7
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