9=3(-1+n)

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Solution for 9=3(-1+n) equation:


9=3(-1+n)

We simplify the equation to the form, which is simple to understand 
9=3(-1+n)

Reorder the terms in parentheses
9=+(-3+3n)

Remove unnecessary parentheses
+9=-3+3n

We move all terms containing n to the left and all other terms to the right. 
-3n=-3-9

We simplify left and right side of the equation. 
-3n=-12

We divide both sides of the equation by -03 to get n. 
n=4

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