Respuesta :

pethauls4up110km
Set 7x-4 and 31 equal to each other
7X-4=31
Add four to both sides
7X=27
X=3
The answer is D
sarajevo

As per the problem we can see that

There two triangles with equal corresponding sides.

So we can set up the equation as below:

[tex] 7x-4=31\\
\\
\text{Add 4 on both the sides we get}\\
\\
7x-4+4=31+4\\
\\
7x=35\\
\\
\text{Divide both the sides by 7 we get}\\
\\
x=5\\ [/tex]

Hence the value of x is 5.