2+5x+4=21x

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Solution for 2+5x+4=21x equation: 



2+5x+4=21x

We move all terms to the left:

2+5x+4-(21x)=0

We add all the numbers together, and all the variables

-16x+6=0

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

-16x=-6

x=-6/-16

x=3/8

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