30=2x+(4-x)

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Solution for 30=2x+(4-x) equation: 



30=2x+(4-x)

We move all terms to the left:

30-(2x+(4-x))=0

We add all the numbers together, and all the variables

-(2x+(-1x+4))+30=0



We calculate terms in parentheses: -(2x+(-1x+4)), so:

2x+(-1x+4)

We get rid of parentheses

2x-1x+4

We add all the numbers together, and all the variables

x+4

Back to the equation:

-(x+4)



We get rid of parentheses

-x-4+30=0

We add all the numbers together, and all the variables

-1x+26=0

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

-x=-26

x=-26/-1

x=+26

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