20x-40x=20

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Solution for 20x-40x=20 equation: 



20x-40x=20

We move all terms to the left:

20x-40x-(20)=0

We add all the numbers together, and all the variables

-20x-20=0

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

-20x=20

x=20/-20

x=-1

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