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никитоз3
@никитоз3
July 2022
2
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1) ( x: 50 - 30) × 60 =540.
2) 480: (13- y) +20 = 100
Пожалуйста помогите решить уравнения. 4класс.
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Wintеr
(х:50-30)*60=540
60х:50-1800=540
60х:50=2340
60х=2340*50
60х=117000
х=117000:60
х=1950
Проверка:
(1950:50-30)*60=540
(39-30)*60=540
9*60=540
540=540
480:(13-у)+20=100
480:(13-у)=100-20
480:(13-у)=80
13-у=480:80
13-у=6
у=13-6
у=7
Проверка:
480:(13-7)+20=100
480:6+20=100
80+20=100
100=100
2 votes
Thanks 4
aleksb1
Verified answer
480: (13- y) +20 = 100
( x: 50 - 30) =540:60
х:50-30=9
х:50=9+30
х:50=39
х=39*50
х=1950
480: (13- y) +20 = 100
480: (13- y) =100-20
480:(13-у)=80
13-у=480:80
13-у=6
у=13-6
у=7
5 votes
Thanks 8
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Answers & Comments
60х:50-1800=540
60х:50=2340
60х=2340*50
60х=117000
х=117000:60
х=1950
Проверка:
(1950:50-30)*60=540
(39-30)*60=540
9*60=540
540=540
480:(13-у)+20=100
480:(13-у)=100-20
480:(13-у)=80
13-у=480:80
13-у=6
у=13-6
у=7
Проверка:
480:(13-7)+20=100
480:6+20=100
80+20=100
100=100
Verified answer
480: (13- y) +20 = 100( x: 50 - 30) =540:60
х:50-30=9
х:50=9+30
х:50=39
х=39*50
х=1950
480: (13- y) +20 = 100
480: (13- y) =100-20
480:(13-у)=80
13-у=480:80
13-у=6
у=13-6
у=7