7a-9=2(4a+1)

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Solution for 7a-9=2(4a+1) equation: 



7a-9=2(4a+1)

We move all terms to the left:

7a-9-(2(4a+1))=0



We calculate terms in parentheses: -(2(4a+1)), so:

2(4a+1)

We multiply parentheses

8a+2

Back to the equation:

-(8a+2)



We get rid of parentheses

7a-8a-2-9=0

We add all the numbers together, and all the variables

-1a-11=0

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

-a=11

a=11/-1

a=-11

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