1)х=0,25х12/0,75=3/0,75=4
2)х=0,75х5/0,36=3,75/0,36=10,416666
3)х=3х0,12/0,5=0,36/0,5=0,72
4)х=4х0,4/3,2=1,6/3,2=0,5
1)
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(это проверка)
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2)
3)
4)
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1)х=0,25х12/0,75=3/0,75=4
2)х=0,75х5/0,36=3,75/0,36=10,416666
3)х=3х0,12/0,5=0,36/0,5=0,72
4)х=4х0,4/3,2=1,6/3,2=0,5
1)![x:0,25=12:0,75](/tpl/images/0044/1216/18130.png)
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2)![0,36:0,75=5:x](/tpl/images/0044/1216/fdcfa.png)
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3)![0,12:0,5=x:3](/tpl/images/0044/1216/cf42b.png)
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4)![0,4:x=3,2:4](/tpl/images/0044/1216/a103f.png)
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