x-x(.2)=7000

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Solution for x-x(.2)=7000 equation: 



x-x(.2)=7000

We move all terms to the left:

x-x(.2)-(7000)=0

We add all the numbers together, and all the variables

x-x(0.2)-7000=0

We multiply parentheses

x-0.2x-7000=0

We add all the numbers together, and all the variables

0.8x-7000=0

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

0.8x=7000

x=7000/0.8

x=8750

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