7+2x=21x=

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Solution for 7+2x=21x= equation: 



7+2x=21x=

We move all terms to the left:

7+2x-(21x)=0

We add all the numbers together, and all the variables

-19x+7=0

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

-19x=-7

x=-7/-19

x=7/19

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