7x+21=8x+69

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Solution for 7x+21=8x+69 equation: 



7x+21=8x+69

We move all terms to the left:

7x+21-(8x+69)=0

We get rid of parentheses

7x-8x-69+21=0

We add all the numbers together, and all the variables

-1x-48=0

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

-x=48

x=48/-1

x=-48

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