Answer:
[tex]\boxed {y = -x - 3}[/tex]
Step-by-step explanation:
Solve for the value of [tex]y[/tex]:
[tex]x + y = -3[/tex]
-Subtract both sides by [tex]x[/tex]:
[tex]x - x + y = -3 - x[/tex]
[tex]\boxed {y = -x - 3}[/tex]
Therefore, the final answer is [tex]y = -x - 3[/tex].
