x-30=x(.75)

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Solution for x-30=x(.75) equation: 



x-30=x(.75)

We move all terms to the left:

x-30-(x(.75))=0

We add all the numbers together, and all the variables

x-(x(0.75))-30=0



We calculate terms in parentheses: -(x(0.75)), so:

x(0.75)

We multiply parentheses

0.75x

Back to the equation:

-(0.75x)



We add all the numbers together, and all the variables

x-(+0.75x)-30=0

We get rid of parentheses

x-0.75x-30=0

We add all the numbers together, and all the variables

0.25x-30=0

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

0.25x=30

x=30/0.25

x=120

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