x-(0.2x)=21000

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Solution for x-(0.2x)=21000 equation: 



x-(0.2x)=21000

We move all terms to the left:

x-(0.2x)-(21000)=0

We add all the numbers together, and all the variables

x-(+0.2x)-21000=0

We get rid of parentheses

x-0.2x-21000=0

We add all the numbers together, and all the variables

0.8x-21000=0

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

0.8x=21000

x=21000/0.8

x=26250

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