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x-((2/3)*x)+10/3 = (1/6)*x+3 // - (1/6)*x+3
x-((2/3)*x)-((1/6)*x)+10/3-3 = 0
(-2/3)*x+x+(-1/6)*x+10/3-3 = 0
1/6*x+1/3 = 0 // - 1/3
1/6*x = -1/3 // : 1/6
x = -1/3/1/6
x = -2
x = -2
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