3a=a-8+4a

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Solution for 3a=a-8+4a equation: 



3a=a-8+4a

We move all terms to the left:

3a-(a-8+4a)=0

We add all the numbers together, and all the variables

3a-(5a-8)=0

We get rid of parentheses

3a-5a+8=0

We add all the numbers together, and all the variables

-2a+8=0

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

-2a=-8

a=-8/-2

a=+4

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