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2*x+2/3 = (1/3)*x-8/3 // - (1/3)*x-8/3
2*x-((1/3)*x)+2/3-(-8/3) = 0
2*x+(-1/3)*x+2/3+8/3 = 0
5/3*x+10/3 = 0 // - 10/3
5/3*x = -10/3 // : 5/3
x = -10/3/5/3
x = -2
x = -2
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