0.8(x-4200)=3000+x

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Solution for 0.8(x-4200)=3000+x equation: 



0.8(x-4200)=3000+x

We move all terms to the left:

0.8(x-4200)-(3000+x)=0

We add all the numbers together, and all the variables

0.8(x-4200)-(x+3000)=0

We multiply parentheses

0.8x-(x+3000)-3360=0

We get rid of parentheses

0.8x-x-3000-3360=0

We add all the numbers together, and all the variables

-0.2x-6360=0

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

-0.2x=6360

x=6360/-0.2

x=-31800

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