7(a-1)=-27+3a

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Solution for 7(a-1)=-27+3a equation: 



7(a-1)=-27+3a

We move all terms to the left:

7(a-1)-(-27+3a)=0

We add all the numbers together, and all the variables

7(a-1)-(3a-27)=0

We multiply parentheses

7a-(3a-27)-7=0

We get rid of parentheses

7a-3a+27-7=0

We add all the numbers together, and all the variables

4a+20=0

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

4a=-20

a=-20/4

a=-5

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