-14a+21=39-2a

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Solution for -14a+21=39-2a equation: 



-14a+21=39-2a

We move all terms to the left:

-14a+21-(39-2a)=0

We add all the numbers together, and all the variables

-14a-(-2a+39)+21=0

We get rid of parentheses

-14a+2a-39+21=0

We add all the numbers together, and all the variables

-12a-18=0

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

-12a=18

a=18/-12

a=-1+1/2

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