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[tex]9(x +3) = 3(3x + 6) + 9[/tex]
[tex]9x + 27 = 9x + 18 + 9[/tex]
[tex]9x + 27 = 9x + 27[/tex]
The two sides of this equation are exactly the same, so the above equation holds for any value of x , thus we have infinite solution for it.
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