-47+20=-2a-7a

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Solution for -47+20=-2a-7a equation: 



-47+20=-2a-7a

We move all terms to the left:

-47+20-(-2a-7a)=0

We add all the numbers together, and all the variables

-(-9a)-47+20=0

We add all the numbers together, and all the variables

-(-9a)-27=0

We get rid of parentheses

9a-27=0

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

9a=27

a=27/9

a=3

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