Answer:
the answer is y=3 I hope I helped
[tex]x = 3[/tex]
Step-by-step explanation:
[tex]y + 3 = - y + 9[/tex]
[tex]y + y = 9 - 3[/tex]
[tex]2y = 6[/tex]
[tex] \frac{2y}{2} = \frac{6}{2} [/tex]
