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(8*x)/3-((5*x)/4) = -3 // + 3
(8*x)/3-((5*x)/4)+3 = 0
(8*x)/3+(-5/4)*x+3 = 0
17/12*x+3 = 0 // - 3
17/12*x = -3 // : 17/12
x = -3/17/12
x = -36/17
x = -36/17
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