Respuesta :

Step-by-step explanation:

The two triangles are similar so

BC=BC

AB=AB

AC=AC

1.)5z=20 (÷b.s by 5)

z=4

2.)8=2x+2

8-2=2x

6=2x (÷b.s by 2)

x=3

3.)3y-3=15

3y=15+3

3y=18. (÷ b.s by 3)

y=6