5/6 y - 3/4y + 1 = 2/3y -1/6
5/6у-3/4у+1=2/3у-1/6
10у-9у+12=8у-2
-7у=-14
у= (-14) : (-7)
у= 2
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5/6 у - 3/4 у+1 =2/3у -1/6
5/6у-3/4у +1-2/3у-1/6=0