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(2/5)*(x-5) = 4/9 // - 4/9
(2/5)*(x-5)-(4/9) = 0
(2/5)*(x-5)-4/9 = 0
2/5*(x-5)-4/9 = 0
(2/5*9*(x-5))/9-4/9 = 0
2/5*9*(x-5)-4 = 0
18/5*x-22 = 0
(18/5*x-22)/9 = 0
(18/5*x-22)/9 = 0 // * 9
18/5*x-22 = 0
18/5*x-22 = 0 // + 22
18/5*x = 22 // : 18/5
x = 22/18/5
x = 55/9
x = 55/9
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