3a+4=8a-16

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Solution for 3a+4=8a-16 equation: 



3a+4=8a-16

We move all terms to the left:

3a+4-(8a-16)=0

We get rid of parentheses

3a-8a+16+4=0

We add all the numbers together, and all the variables

-5a+20=0

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

-5a=-20

a=-20/-5

a=+4

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