12x-43=21x

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Solution for 12x-43=21x equation: 



12x-43=21x

We move all terms to the left:

12x-43-(21x)=0

We add all the numbers together, and all the variables

-9x-43=0

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

-9x=43

x=43/-9

x=-4+7/9

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