7x-7=131

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Solution for 7x-7=131 equation: 



7x-7=131

We move all terms to the left:

7x-7-(131)=0

We add all the numbers together, and all the variables

7x-138=0

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

7x=138

x=138/7

x=19+5/7

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