7x-20=7x-20

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Solution for 7x-20=7x-20 equation: 



7x-20=7x-20

We move all terms to the left:

7x-20-(7x-20)=0

We get rid of parentheses

7x-7x+20-20=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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