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(6/7)*x+(3/7)*x+1/2 = 29/22 // - 29/22
(6/7)*x+(3/7)*x+1/2-(29/22) = 0
(6/7)*x+(3/7)*x+1/2-29/22 = 0
9/7*x-9/11 = 0 // + 9/11
9/7*x = 9/11 // : 9/7
x = 9/11/9/7
x = 7/11
x = 7/11
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