21=0.333(3-4x)

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Solution for 21=0.333(3-4x) equation: 



21=0.333(3-4x)

We move all terms to the left:

21-(0.333(3-4x))=0

We add all the numbers together, and all the variables

-(0.333(-4x+3))+21=0



We calculate terms in parentheses: -(0.333(-4x+3)), so:

0.333(-4x+3)

We multiply parentheses

-1.332x+0.999

Back to the equation:

-(-1.332x+0.999)



We get rid of parentheses

1.332x-0.999+21=0

We add all the numbers together, and all the variables

1.332x+20.001=0

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

1.332x=-20.001

x=-20.001/1.332

x=-15+0.021000000000001/1.332

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