5+3+4=a

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Solution for 5+3+4=a equation: 



5+3+4=a

We move all terms to the left:

5+3+4-(a)=0

We add all the numbers together, and all the variables

-1a+12=0

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

-a=-12

a=-12/-1

a=+12

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