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