30-x=0.5(30-x)

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Solution for 30-x=0.5(30-x) equation: 



30-x=0.5(30-x)

We move all terms to the left:

30-x-(0.5(30-x))=0

We add all the numbers together, and all the variables

-x-(0.5(-1x+30))+30=0

We add all the numbers together, and all the variables

-1x-(0.5(-1x+30))+30=0



We calculate terms in parentheses: -(0.5(-1x+30)), so:

0.5(-1x+30)

We multiply parentheses

-0.5x+15

Back to the equation:

-(-0.5x+15)



We get rid of parentheses

-1x+0.5x-15+30=0

We add all the numbers together, and all the variables

-0.5x+15=0

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

-0.5x=-15

x=-15/-0.5

x=+30

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