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(1/4)*(3*x+4) = 8 // - 8
(1/4)*(3*x+4)-8 = 0
1/4*(3*x+4)-8 = 0
1/4*(3*x+4)-8 = 0
3/4*x-7 = 0
3/4*x-7 = 0
3/4*x-7 = 0 // + 7
3/4*x = 7 // : 3/4
x = 7/3/4
x = 28/3
x = 28/3
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