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3*x-((1/3)*x)+2 = 4 // - 4
3*x-((1/3)*x)-4+2 = 0
3*x+(-1/3)*x-4+2 = 0
8/3*x-2 = 0 // + 2
8/3*x = 2 // : 8/3
x = 2/8/3
x = 3/4
x = 3/4
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