100=x-0.3x

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Solution for 100=x-0.3x equation: 



100=x-0.3x

We move all terms to the left:

100-(x-0.3x)=0

We add all the numbers together, and all the variables

-(+0.7x)+100=0

We get rid of parentheses

-0.7x+100=0

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

-0.7x=-100

x=-100/-0.7

x=142+0.6/0.7

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