100=40+40+(2x+30)

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Solution for 100=40+40+(2x+30) equation: 



100=40+40+(2x+30)

We move all terms to the left:

100-(40+40+(2x+30))=0



We calculate terms in parentheses: -(40+40+(2x+30)), so:

40+40+(2x+30)

determiningTheFunctionDomain
(2x+30)+40+40

We add all the numbers together, and all the variables

(2x+30)+80

We get rid of parentheses

2x+30+80

We add all the numbers together, and all the variables

2x+110

Back to the equation:

-(2x+110)



We get rid of parentheses

-2x-110+100=0

We add all the numbers together, and all the variables

-2x-10=0

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

-2x=10

x=10/-2

x=-5

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