2a=7(3a-9)

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Solution for 2a=7(3a-9) equation: 



2a=7(3a-9)

We move all terms to the left:

2a-(7(3a-9))=0



We calculate terms in parentheses: -(7(3a-9)), so:

7(3a-9)

We multiply parentheses

21a-63

Back to the equation:

-(21a-63)



We get rid of parentheses

2a-21a+63=0

We add all the numbers together, and all the variables

-19a+63=0

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

-19a=-63

a=-63/-19

a=3+6/19

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