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x+7 = 77/6-((1/6)*x) // - 77/6-((1/6)*x)
x+(1/6)*x-(77/6)+7 = 0
x+(1/6)*x-77/6+7 = 0
7/6*x-35/6 = 0 // + 35/6
7/6*x = 35/6 // : 7/6
x = 35/6/7/6
x = 5
x = 5
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