7(a-4)-1=13-4a

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Solution for 7(a-4)-1=13-4a equation: 



7(a-4)-1=13-4a

We move all terms to the left:

7(a-4)-1-(13-4a)=0

We add all the numbers together, and all the variables

7(a-4)-(-4a+13)-1=0

We multiply parentheses

7a-(-4a+13)-28-1=0

We get rid of parentheses

7a+4a-13-28-1=0

We add all the numbers together, and all the variables

11a-42=0

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

11a=42

a=42/11

a=3+9/11

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