x-(x*0.4)=2100

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Solution for x-(x*0.4)=2100 equation: 



x-(x*0.4)=2100

We move all terms to the left:

x-(x*0.4)-(2100)=0

We add all the numbers together, and all the variables

x-(+x*0.4)-2100=0

We get rid of parentheses

x-x*0.4-2100=0

Wy multiply elements

x-0.4x-2100=0

We add all the numbers together, and all the variables

0.6x-2100=0

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

0.6x=2100

x=2100/0.6

x=3500

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