Answer:
the 4th one
Step-by-step explanation:
2/9
x = 2-7y over 4
4x+7y=2
-7y -7y
4x = 2 - 7y
/4 /4
x=2 - 7y/4
2(y+5)
= 2y+10 simple multiplication method
it's 5\sqrt{3}[/tex]
hope it helps you