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x+(2/7)*x+1/2 = 19/14 // - 19/14
x+(2/7)*x+1/2-(19/14) = 0
x+(2/7)*x+1/2-19/14 = 0
9/7*x-6/7 = 0 // + 6/7
9/7*x = 6/7 // : 9/7
x = 6/7/9/7
x = 2/3
x = 2/3
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