2x-18=21x

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Solution for 2x-18=21x equation: 



2x-18=21x

We move all terms to the left:

2x-18-(21x)=0

We add all the numbers together, and all the variables

-19x-18=0

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

-19x=18

x=18/-19

x=-18/19

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