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айнель7
@айнель7
July 2022
2
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Решите уровнение 3у+9/5+5у-5/4=6+ 3у+1/2
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55556669080
3у+9/5+5у-5/4=6+3у+1/2
3у•20+9•4+5у•20-5•5=6•20+3у•20-1•10
60у+36+100у-25=120+60у-10
60у+100у-60у=120-10+25-36
100у=99
у=99:100
у=0,99
ответ 0,99
0 votes
Thanks 2
саша1825
Ответ 17 ...............?.....
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Thanks 3
selin1965
3у+9/5+5у-5/4=6+3у+1/2
selin1965
12у+36+25у-25/20=120+30+10/20 привели к общему знаменателю (т.е. 20-ти) ; 12у+25у-30у=120+10-36+25; 7у=119; у=119:7; у=17
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Answers & Comments
3у•20+9•4+5у•20-5•5=6•20+3у•20-1•10
60у+36+100у-25=120+60у-10
60у+100у-60у=120-10+25-36
100у=99
у=99:100
у=0,99
ответ 0,99