Question

)6,75 x X + 3,25 x X = 20

Answer 1

        \(6,75.x+3,25.x=20\)

\(\Rightarrow\left(6,75+3,25\right).x=20\)

\(\Rightarrow10.x=20\)

\(\Rightarrow x=20:10\)

\(\Rightarrow x=2\)

Vậy x = 2

Answer 2

\(6,75\times x+3,25\times x=20\)

\(x\times\left(6,75+3,25\right)=20\)

\(x\times10=20\)

\(x=20:10\)

\(x=2\)

Chúc bn học tốt !!!!

Answer 3

6,75*x+3,25*x=20

 x*(6,75+3,25)=20

               x*10=20 

                    x=20:10

                    x=2