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(5*x)/4-3 = (7*x)/6 // - (7*x)/6
(5*x)/4-((7*x)/6)-3 = 0
(5*x)/4+(-7/6)*x-3 = 0
1/12*x-3 = 0 // + 3
1/12*x = 3 // : 1/12
x = 3/1/12
x = 36
x = 36
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