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2*x-((4/3)*x)-7 = 3/9 // - 3/9
2*x-((4/3)*x)-(3/9)-7 = 0
2*x+(-4/3)*x-1/3-7 = 0
2/3*x-22/3 = 0 // + 22/3
2/3*x = 22/3 // : 2/3
x = 22/3/2/3
x = 11
x = 11
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