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(3/4)*(2*x+5) = 6 // - 6
(3/4)*(2*x+5)-6 = 0
3/4*(2*x+5)-6 = 0
3/4*(2*x+5)-6 = 0
3/2*x-9/4 = 0
3/2*x-9/4 = 0
3/2*x-9/4 = 0 // + 9/4
3/2*x = 9/4 // : 3/2
x = 9/4/3/2
x = 3/2
x = 3/2
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