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10-((2/3)*x)-(5*x) = 13/3 // - 13/3
10-((2/3)*x)-(5*x)-(13/3) = 0
(-2/3)*x-5*x-13/3+10 = 0
17/3-17/3*x = 0 // - 17/3
-17/3*x = -17/3 // : -17/3
x = -17/3/(-17/3)
x = 1
x = 1
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