6a-9=7+2a

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Solution for 6a-9=7+2a equation: 



6a-9=7+2a

We move all terms to the left:

6a-9-(7+2a)=0

We add all the numbers together, and all the variables

6a-(2a+7)-9=0

We get rid of parentheses

6a-2a-7-9=0

We add all the numbers together, and all the variables

4a-16=0

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

4a=16

a=16/4

a=4

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