7(a+3)=(5a+3)

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Solution for 7(a+3)=(5a+3) equation: 



7(a+3)=(5a+3)

We move all terms to the left:

7(a+3)-((5a+3))=0

We multiply parentheses

7a-((5a+3))+21=0



We calculate terms in parentheses: -((5a+3)), so:

(5a+3)

We get rid of parentheses

5a+3

Back to the equation:

-(5a+3)



We get rid of parentheses

7a-5a-3+21=0

We add all the numbers together, and all the variables

2a+18=0

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

2a=-18

a=-18/2

a=-9

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