7a=9-2a

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Solution for 7a=9-2a equation: 



7a=9-2a

We move all terms to the left:

7a-(9-2a)=0

We add all the numbers together, and all the variables

7a-(-2a+9)=0

We get rid of parentheses

7a+2a-9=0

We add all the numbers together, and all the variables

9a-9=0

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

9a=9

a=9/9

a=1

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