(x+3)+84=90

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Solution for (x+3)+84=90 equation: 



(x+3)+84=90

We move all terms to the left:

(x+3)+84-(90)=0

We add all the numbers together, and all the variables

(x+3)-6=0

We get rid of parentheses

x+3-6=0

We add all the numbers together, and all the variables

x-3=0

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

x=3

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