Question

Rezolvaţi ecuatia:2/5× x -1/2=1/10​

Answer 1

Rezolvarea este in poza

Answer 2

$\it \dfrac{2}{5}x-\dfrac{1}{2}=\dfrac{1}{10}\Big|_{\cdot10} \Rightarrow 4x-5=1|_{+5} \Rightarrow 4x=6|_{:4} \Rightarrow x=1,5$