Respuesta :

Answer:

It is 3 units in perimeter.

Step-by-step explanation:

5-2x=-4x+9

Add 2x to both sides.

5=-2x+9

Subtract 5 from both sides.

0=-2x+4

Divide by negative two.

0=x-2

Add 2 to both sides.

2=x

Now, find that 5-2(2)=1. 1*3 is three, so your answer is three.