3+(7-n)2=9

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Solution for 3+(7-n)2=9 equation: 



3+(7-n)2=9

We move all terms to the left:

3+(7-n)2-(9)=0

We add all the numbers together, and all the variables

(-1n+7)2+3-9=0

We add all the numbers together, and all the variables

(-1n+7)2-6=0

We multiply parentheses

-2n+14-6=0

We add all the numbers together, and all the variables

-2n+8=0

We move all terms containing n to the left, all other terms to the right

-2n=-8

n=-8/-2

n=+4

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