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-((19*x)/5)-8 = (-7*x)/5-(3*((9*x)/5+4/3)) // - (-7*x)/5-(3*((9*x)/5+4/3))
3*((9*x)/5+4/3)-((19*x)/5)-((-7*x)/5)-8 = 0
3*((9*x)/5+4/3)+(-19/5)*x+(7/5)*x-8 = 0
3*(9/5*x+4/3)+(-19*x)/5+(7*x)/5-8 = 0
(3*5*(9/5*x+4/3))/5+(-19*x)/5+(7*x)/5+(-8*5)/5 = 0
3*5*(9/5*x+4/3)-19*x+7*x-8*5 = 0
8*x+7*x-40+20 = 0
15*x-40+20 = 0
15*x-20 = 0
(15*x-20)/5 = 0
(15*x-20)/5 = 0 // * 5
15*x-20 = 0
15*x-20 = 0 // + 20
15*x = 20 // : 15
x = 20/15
x = 4/3
x = 4/3
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