7x-21=69

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Solution for 7x-21=69 equation: 



7x-21=69

We move all terms to the left:

7x-21-(69)=0

We add all the numbers together, and all the variables

7x-90=0

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

7x=90

x=90/7

x=12+6/7

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