3a+9=a+7+a+3

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



3a+9=a+7+a+3

We move all terms to the left:

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

We add all the numbers together, and all the variables

3a-(2a+10)+9=0

We get rid of parentheses

3a-2a-10+9=0

We add all the numbers together, and all the variables

a-1=0

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

a=1

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