2x+x=1980

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Solution for 2x+x=1980 equation: 



2x+x=1980

We move all terms to the left:

2x+x-(1980)=0

We add all the numbers together, and all the variables

3x-1980=0

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

3x=1980

x=1980/3

x=660

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