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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-1a+6a-(7a+3)+3=0

We get rid of parentheses

-1a+6a-7a-3+3=0

We add all the numbers together, and all the variables

-2a=0

a=0/-2

a=0

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