7x-138=x

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Solution for 7x-138=x equation: 



7x-138=x

We move all terms to the left:

7x-138-(x)=0

We add all the numbers together, and all the variables

6x-138=0

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

6x=138

x=138/6

x=23

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