6x-21=19+x

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Solution for 6x-21=19+x equation: 



6x-21=19+x

We move all terms to the left:

6x-21-(19+x)=0

We add all the numbers together, and all the variables

6x-(x+19)-21=0

We get rid of parentheses

6x-x-19-21=0

We add all the numbers together, and all the variables

5x-40=0

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

5x=40

x=40/5

x=8

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