3a+1=5a-15

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Solution for 3a+1=5a-15 equation: 



3a+1=5a-15

We move all terms to the left:

3a+1-(5a-15)=0

We get rid of parentheses

3a-5a+15+1=0

We add all the numbers together, and all the variables

-2a+16=0

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

-2a=-16

a=-16/-2

a=+8

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