Start by drawing the rectangle and naming the corners and distributing the corresponding distances
Since we are talking about a rectangle sides KM and LN are the same, which gives the following equation
[tex]7x+20=55[/tex]
solve the equation for x
[tex]\begin{gathered} 7x=55-20 \\ 7x=35 \\ x=\frac{35}{7} \\ x=5 \end{gathered}[/tex]
The value of x is 5.
