a)7511:y=37, b) x:83=38, B) 17×(x-18)=408.. Created by 11NIKA5. matematika-ru

a)7511:y=37, b) x:83=38, B) 17×(x-18)=408...

KaBa4OK22 Посчитай сам

7511x37=y
83x38=x
3-е незнаю)

0 votes Thanks 2

owlj А) 7511:у=37
Домножим на у.
7511=37у
у=7511:37
у=203
б) х:83=38
Домножим на 83.
х=38*83
х=3154
в) 17(х-18)=408
17х-306=408
17х=408+306
17х=714
х=714:17
х=42

2 votes Thanks 6

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