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(3/2)*(4-(7*x)) = (5/3)*(9-(8*x)) // - (5/3)*(9-(8*x))
(3/2)*(4-(7*x))-((5/3)*(9-(8*x))) = 0
(3/2)*(4-7*x)+(-5/3)*(9-8*x) = 0
3/2*(4-7*x)-5/3*(9-8*x) = 0
3/2*(4-7*x)-5/3*(9-8*x) = 0
17/6*x-9 = 0
17/6*x-9 = 0
17/6*x-9 = 0 // + 9
17/6*x = 9 // : 17/6
x = 9/17/6
x = 54/17
x = 54/17
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