2a+4=7a-a

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Solution for 2a+4=7a-a equation: 



2a+4=7a-a

We move all terms to the left:

2a+4-(7a-a)=0

We add all the numbers together, and all the variables

2a-(+6a)+4=0

We get rid of parentheses

2a-6a+4=0

We add all the numbers together, and all the variables

-4a+4=0

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

-4a=-4

a=-4/-4

a=1

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