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dovganik2016
@dovganik2016
July 2022
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реши уравнение с коментированием и сделай проверку ( 300 × Х-72)÷7=96 +108 б) 200-560 ÷ (У +36)=48 × 4
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agressia666
А)
(300*х-72)/7=96+108
(300*x-72)=204*7
300*x-72=1428
300*x=1428+72
300*x=1500
x=5
Проверка :
(300*5-72)/7=96+108
(1500-72)/7=204
1428=1428
б) 200-560/(y+36)=48*4
560/(y+36)=192-200
560/(y+36)=-8
y+36=-560/-8
y+36=70
у=34
Проверка :
200-560/(34+36)=48*4
200-560/70=192
-560/70=192-200
-8=-8
10 votes
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Answers & Comments
(300*x-72)=204*7
300*x-72=1428
300*x=1428+72
300*x=1500
x=5
Проверка : (300*5-72)/7=96+108
(1500-72)/7=204
1428=1428
б) 200-560/(y+36)=48*4
560/(y+36)=192-200
560/(y+36)=-8
y+36=-560/-8
y+36=70
у=34
Проверка : 200-560/(34+36)=48*4
200-560/70=192
-560/70=192-200
-8=-8