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ДиньЛинь
@ДиньЛинь
August 2022
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решите уравнение
а ) 2/7х = 2 2/7
б) 3/5у = 2 9/10
в) 3/7а + 2/5 = 1
г) 3 1/3 : к = 1 1/3 : 2
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olgateviasheva
2/7х=2 2/7⇒х=16/7:2/7⇒х=8
б)3/5у=2 9/10⇒у=29/10:3/5⇒у=29/6⇒у=4 5/6
в)3/7а+2/5=1⇒3/7а=1-2/5⇒3/7а=3/5⇒а=3/5:3/7⇒а=7/5⇒а=1 2/5
г) 3 1/3:к=11/3:2⇒10/3:к=11/6⇒к=10/3:11/6⇒к=10/3*6/11⇒к=20/11⇒к=1 9/11
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Answers & Comments
б)3/5у=2 9/10⇒у=29/10:3/5⇒у=29/6⇒у=4 5/6
в)3/7а+2/5=1⇒3/7а=1-2/5⇒3/7а=3/5⇒а=3/5:3/7⇒а=7/5⇒а=1 2/5
г) 3 1/3:к=11/3:2⇒10/3:к=11/6⇒к=10/3:11/6⇒к=10/3*6/11⇒к=20/11⇒к=1 9/11