9-(3a+5)=7-a

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Solution for 9-(3a+5)=7-a equation: 



9-(3a+5)=7-a

We move all terms to the left:

9-(3a+5)-(7-a)=0

We add all the numbers together, and all the variables

-(3a+5)-(-1a+7)+9=0

We get rid of parentheses

-3a+1a-5-7+9=0

We add all the numbers together, and all the variables

-2a-3=0

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

-2a=3

a=3/-2

a=-1+1/2

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