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(4/5)*x-((3/10)*x)-2 = 5*x-((2/3)*x)+3 // - 5*x-((2/3)*x)+3
(4/5)*x-((3/10)*x)-(5*x)+(2/3)*x-3-2 = 0
(4/5)*x+(-3/10)*x-5*x+(2/3)*x-3-2 = 0
-23/6*x-5 = 0 // + 5
-23/6*x = 5 // : -23/6
x = 5/(-23/6)
x = -30/23
x = -30/23
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