2a+20=12a+120

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Solution for 2a+20=12a+120 equation: 



2a+20=12a+120

We move all terms to the left:

2a+20-(12a+120)=0

We get rid of parentheses

2a-12a-120+20=0

We add all the numbers together, and all the variables

-10a-100=0

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

-10a=100

a=100/-10

a=-10

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