6(a+3)=3(a+7)

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Solution for 6(a+3)=3(a+7) equation: 



6(a+3)=3(a+7)

We move all terms to the left:

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

We multiply parentheses

6a-(3(a+7))+18=0



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

3(a+7)

We multiply parentheses

3a+21

Back to the equation:

-(3a+21)



We get rid of parentheses

6a-3a-21+18=0

We add all the numbers together, and all the variables

3a-3=0

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

3a=3

a=3/3

a=1

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