марик
марик
05-09-2017
Mathematics
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40•(420:x-37)=200 помогите решить уравнение
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Аноним
Аноним
05-09-2017
40•(420:x-37)=200
означает [tex]40(\frac{420}{x}-37)=200[/tex]
разделите обе стороны на 40
[tex]\frac{420}{x}-37=5[/tex]
добавить 37 с обеих сторон
[tex]\frac{420}{x}=42[/tex]
умножить обе стороны на х
420=42x
разделите обе стороны на 42
10=x
x=10
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