Answer :
-remove the ( )
-y+5.3 + 7.2 -9 = 6.2Y + n
combine like terms
6.2y -3,7 =6.2y +n
6,2 y cancels out
-3.7= n
[tex](-y+5.3)+(7.2y-9)=6.2y+n\\-y+5.3+7.2y-9=6.2y+n\\(-y+7.2y)+(5.3-9)=6.2y+n\\6.2y-3.7=6.2y+n\ \ \ \ |subtract\ 6.2y\ from\ both\ sides\\-3.7=n\\\boxed{n=-3.7}}[/tex]
