Question

Giải PT:

\(0,2-\left(5x-10\right)-0,1\left(10x-5\right)=0\)

Answer 1

PT   0,2-(5x-10)-0,1(10x-5)=0

    <=>  0,2-5x+10-x+0,5=0

   <=>10,7-6x=0

   <=>6x=10,7

   <=>6=107/60

Answer 2

<=>\(\orbr{\begin{cases}0,2-\left(5x-10\right)=0\\0,1\left(10x-5\right)=0\end{cases}}\)<=>\(\orbr{\begin{cases}5x-10=0,2-0\\10x-5=0,1-0\end{cases}}\)<=>\(\orbr{\begin{cases}5x-10=0,2\\10x-5=0,1\end{cases}}\)<=>\(\orbr{\begin{cases}5x=0,2+10\\10x=0,1+5\end{cases}}\)

<=>\(\orbr{\begin{cases}5x=10,2\\10x=5,1\end{cases}}\)<=>\(\orbr{\begin{cases}x=10,2:10\\x=5,1:5\end{cases}}\)<=>\(\orbr{\begin{cases}x=1,02\\x=1,02\end{cases}}\)

VậyxE{1,02;1,02}