1-4w=21

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Solution for 1-4w=21 equation: 



1-4w=21

We move all terms to the left:

1-4w-(21)=0

We add all the numbers together, and all the variables

-4w-20=0

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

-4w=20

w=20/-4

w=-5

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