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Vasermann
@Vasermann
August 2022
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a:b = 3:7
k) 2a-b=0.6
l) a+b=15
z) a+b=3
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Answers & Comments
Emmaff
A:b=3:7=3x:7x
а=3х, b=7x
Подставляем значения.
k) 2*3x-7x=0.6
-x=0.6
x=-0.6
l) 3x+7x=15
10x=15
x=1.5
z) 3x+7x=3
10x=3
x=0.3
Вроде бы так)
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Answers & Comments
а=3х, b=7x
Подставляем значения.
k) 2*3x-7x=0.6
-x=0.6
x=-0.6
l) 3x+7x=15
10x=15
x=1.5
z) 3x+7x=3
10x=3
x=0.3
Вроде бы так)