7x-55=3x+20

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Solution for 7x-55=3x+20 equation: 



7x-55=3x+20

We move all terms to the left:

7x-55-(3x+20)=0

We get rid of parentheses

7x-3x-20-55=0

We add all the numbers together, and all the variables

4x-75=0

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

4x=75

x=75/4

x=18+3/4

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