100=(0.4x)+x

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Solution for 100=(0.4x)+x equation: 



100=(0.4x)+x

We move all terms to the left:

100-((0.4x)+x)=0

We add all the numbers together, and all the variables

-((+0.4x)+x)+100=0



We calculate terms in parentheses: -((+0.4x)+x), so:

(+0.4x)+x

We add all the numbers together, and all the variables

x+(+0.4x)

We get rid of parentheses

x+0.4x

We add all the numbers together, and all the variables

1.4x

Back to the equation:

-(1.4x)



We add all the numbers together, and all the variables

-(+1.4x)+100=0

We get rid of parentheses

-1.4x+100=0

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

-1.4x=-100

x=-100/-1.4

x=71+0.60000000000001/1.4

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