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(7*x+4)/12 = 11 // - 11
(7*x+4)/12-11 = 0
(7*x+4)/12+(-11*12)/12 = 0
7*x-11*12+4 = 0
7*x-128 = 0
(7*x-128)/12 = 0
(7*x-128)/12 = 0 // * 12
7*x-128 = 0
7*x-128 = 0 // + 128
7*x = 128 // : 7
x = 128/7
x = 128/7
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