225=9(9+x)

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Solution for 225=9(9+x) equation: 



225=9(9+x)

We move all terms to the left:

225-(9(9+x))=0

We add all the numbers together, and all the variables

-(9(x+9))+225=0



We calculate terms in parentheses: -(9(x+9)), so:

9(x+9)

We multiply parentheses

9x+81

Back to the equation:

-(9x+81)



We get rid of parentheses

-9x-81+225=0

We add all the numbers together, and all the variables

-9x+144=0

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

-9x=-144

x=-144/-9

x=+16

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