5+3a=7(a+3)

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



5+3a=7(a+3)

We move all terms to the left:

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



We calculate terms in parentheses: -(7(a+3)), so:

7(a+3)

We multiply parentheses

7a+21

Back to the equation:

-(7a+21)



We get rid of parentheses

3a-7a-21+5=0

We add all the numbers together, and all the variables

-4a-16=0

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

-4a=16

a=16/-4

a=-4

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