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4*x-(6/7) = 2 // - 2
4*x-(6/7)-2 = 0
4*x-6/7-2 = 0
4*x-20/7 = 0 // + 20/7
4*x = 20/7 // : 4
x = 20/7/4
x = 5/7
x = 5/7
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