Question

70-5.(x-3)=45 tìm x 

Answer 1

\(70-5\left(x-3\right)=45\)

\(\Rightarrow5\left(x-3\right)=30\)

\(\Rightarrow x-3=6\Rightarrow x=9\)

Answer 2

\(70-5\left(x-3\right)=45\)

\(\Leftrightarrow5\left(x-3\right)=25\)

\(\Leftrightarrow x-3=5\)

hay x=8