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(1/4)*(5*x-1) = 8 // - 8
(1/4)*(5*x-1)-8 = 0
1/4*(5*x-1)-8 = 0
1/4*(5*x-1)-8 = 0
5/4*x-33/4 = 0
5/4*x-33/4 = 0
5/4*x-33/4 = 0 // + 33/4
5/4*x = 33/4 // : 5/4
x = 33/4/5/4
x = 33/5
x = 33/5
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