Question

Giup mik voi!!!!!!!!!!!!!!!!!!!!

Answer 1

\(x-\dfrac{1}{2}.0,5=1,15\\ \Rightarrow x-\dfrac{1}{2}.\dfrac{1}{2}=\dfrac{23}{20}\\ \Rightarrow x-\dfrac{1}{4}=\dfrac{23}{20}\\ \Rightarrow x=\dfrac{23}{20}+\dfrac{1}{4}\\ \Rightarrow x=\dfrac{7}{5}\)

Answer 2

\(x-\dfrac{1}{2}.0,5=1,15\)

\(x-\dfrac{1}{2}.\dfrac{1}{2}=\dfrac{115}{100}\)

\(x-\dfrac{1}{4}\)      \(=\dfrac{23}{20}\)

\(x\)              \(=\dfrac{23}{20}+\dfrac{1}{4}=\dfrac{7}{5}\)