7a=4(2a+1)-3a

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Solution for 7a=4(2a+1)-3a equation: 



7a=4(2a+1)-3a

We move all terms to the left:

7a-(4(2a+1)-3a)=0



We calculate terms in parentheses: -(4(2a+1)-3a), so:

4(2a+1)-3a

We add all the numbers together, and all the variables

-3a+4(2a+1)

We multiply parentheses

-3a+8a+4

We add all the numbers together, and all the variables

5a+4

Back to the equation:

-(5a+4)



We get rid of parentheses

7a-5a-4=0

We add all the numbers together, and all the variables

2a-4=0

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

2a=4

a=4/2

a=2

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