-7a=9-3a

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Solution for -7a=9-3a equation: 



-7a=9-3a

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-7a+3a-9=0

We add all the numbers together, and all the variables

-4a-9=0

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

-4a=9

a=9/-4

a=-2+1/4

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