7x+3=9(x+5)

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Solution for 7x+3=9(x+5) equation: 



7x+3=9(x+5)

We move all terms to the left:

7x+3-(9(x+5))=0



We calculate terms in parentheses: -(9(x+5)), so:

9(x+5)

We multiply parentheses

9x+45

Back to the equation:

-(9x+45)



We get rid of parentheses

7x-9x-45+3=0

We add all the numbers together, and all the variables

-2x-42=0

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

-2x=42

x=42/-2

x=-21

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