2a+2a=-20

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



2a+2a=-20

We move all terms to the left:

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

We add all the numbers together, and all the variables

4a+20=0

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

4a=-20

a=-20/4

a=-5

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