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(8*(2*x-7))/5 = 3 // - 3
(8*(2*x-7))/5-3 = 0
(8*(2*x-7))/5+(-3*5)/5 = 0
8*(2*x-7)-3*5 = 0
16*x-71 = 0
(16*x-71)/5 = 0
(16*x-71)/5 = 0 // * 5
16*x-71 = 0
16*x-71 = 0 // + 71
16*x = 71 // : 16
x = 71/16
x = 71/16
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