2a+4=7a-8

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Solution for 2a+4=7a-8 equation: 



2a+4=7a-8

We move all terms to the left:

2a+4-(7a-8)=0

We get rid of parentheses

2a-7a+8+4=0

We add all the numbers together, and all the variables

-5a+12=0

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

-5a=-12

a=-12/-5

a=2+2/5

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