Question

x x 13.4 - x x 4.4 + x = 71.23

Answer 1

`x xx 13,4-x xx 4,4=71,23`

`=>x xx (13,4-3,4)=71,23`

`=>x xx 10=71,23`

`=>x=7,123`

Vậy `x=7,123`

Answer 2

\(x.13,4-x.4,4=71,23\) 

\(x.\left(13,4-4,4\right)=71,23\) 

                   \(x.9=71,23\) 

                      \(x=71,23:9\) 

                      \(x=\dfrac{7123}{900}\)