Respuesta :

Answer:

8

Step-by-step explanation:

as side of square are equal

3x=5x-16

3x+16=5x

16=5x-3x

16=2x

16÷2=x

8=x

therefore value of x is 8

Answer:

x=8

Step-by-step explanation:

The sides on a square measure the same

so

5x-16 = 3x

2x=16

x=8