3a-3=2(a+1)+8a+4

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Solution for 3a-3=2(a+1)+8a+4 equation: 



3a-3=2(a+1)+8a+4

We move all terms to the left:

3a-3-(2(a+1)+8a+4)=0



We calculate terms in parentheses: -(2(a+1)+8a+4), so:

2(a+1)+8a+4

We add all the numbers together, and all the variables

8a+2(a+1)+4

We multiply parentheses

8a+2a+2+4

We add all the numbers together, and all the variables

10a+6

Back to the equation:

-(10a+6)



We get rid of parentheses

3a-10a-6-3=0

We add all the numbers together, and all the variables

-7a-9=0

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

-7a=9

a=9/-7

a=-1+2/7

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