7x-21=50

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Solution for 7x-21=50 equation: 



7x-21=50

We move all terms to the left:

7x-21-(50)=0

We add all the numbers together, and all the variables

7x-71=0

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

7x=71

x=71/7

x=10+1/7

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