y nhân 6-y =100
Cách tính
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y x 6 - y = 100
y x ( 6 - 1 ) = 100
y x 5 = 100
y = 100 : 5
y = 20
\(y\times6-y=100\)
\(y\times6-y\times1=100\)
\(y\times\left(6-1\right)=100\)
\(y\times5=100\)
\(y=100\div5\)
\(y=20\)
y x 6 - y = 100
y x ( 6 - 1) = 100
y x 5 = 100
y = 100 : 5
y = 20
chúc bạn học tốt, ủng hộ mk nha !!! ^_^