Question

[trần minh trang]

x:2-x * 0,2=25,2

Answer 1

[Nguyễn Vũ Minh Hiếu]

\(x:2-x\times0,2=25,2\)

\(x\times0,5-x\times0,2=25,2\)

\(x\times\left(0,5-0,2\right)=25,2\)

\(x\times0,3=25,2\)

\(x=25,2:0,3\)

\(x=84\)

~ Hok tốt ~

Answer 2

[☆ĐP◈Replay-Music]

\(x\div2-x\times0,2=25,2\)

\(\Rightarrow x\times\frac{1}{2}-x\times\frac{1}{5}=25,2\)

\(\Rightarrow x\times\left(\frac{1}{2}-\frac{1}{5}\right)=25,2\)

\(\Rightarrow x\times0,3=25,2\)

\(\Rightarrow x=25,2\div0,3=84\)