3-4(a-1)=9+a

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Solution for 3-4(a-1)=9+a equation: 



3-4(a-1)=9+a

We move all terms to the left:

3-4(a-1)-(9+a)=0

We add all the numbers together, and all the variables

-4(a-1)-(a+9)+3=0

We multiply parentheses

-4a-(a+9)+4+3=0

We get rid of parentheses

-4a-a-9+4+3=0

We add all the numbers together, and all the variables

-5a-2=0

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

-5a=2

a=2/-5

a=-2/5

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