3x=40+(x+45)

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Solution for 3x=40+(x+45) equation: 



3x=40+(x+45)

We move all terms to the left:

3x-(40+(x+45))=0



We calculate terms in parentheses: -(40+(x+45)), so:

40+(x+45)

determiningTheFunctionDomain
(x+45)+40

We get rid of parentheses

x+45+40

We add all the numbers together, and all the variables

x+85

Back to the equation:

-(x+85)



We get rid of parentheses

3x-x-85=0

We add all the numbers together, and all the variables

2x-85=0

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

2x=85

x=85/2

x=42+1/2

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