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2/3-((1/2)*x) = -6*x-(7/3) // + -6*x-(7/3)
2/3-((1/2)*x)-(-6*x)+7/3 = 0
(-1/2)*x+6*x+2/3+7/3 = 0
11/2*x+3 = 0 // - 3
11/2*x = -3 // : 11/2
x = -3/11/2
x = -6/11
x = -6/11
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