2+7a=4a-4

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



2+7a=4a-4

We move all terms to the left:

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

We get rid of parentheses

7a-4a+4+2=0

We add all the numbers together, and all the variables

3a+6=0

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

3a=-6

a=-6/3

a=-2

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