225=9(9+c)

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



225=9(9+c)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

9(c+9)

We multiply parentheses

9c+81

Back to the equation:

-(9c+81)



We get rid of parentheses

-9c-81+225=0

We add all the numbers together, and all the variables

-9c+144=0

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

-9c=-144

c=-144/-9

c=+16

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