The solution of the equation is y = 3.
An equation between two variables that gives a straight line when plotted on a graph.
The solution to the equation is;
[tex]\rm y + 3 = -y + 9\\\\y+y=9-3\\\\2y=6\\\\y=\dfrac{6}{2}\\\\y=3[/tex]
Hence, the solution of the equation is y = 3.
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https://brainly.com/question/14824234
