x+(2x+3)=84

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Solution for x+(2x+3)=84 equation: 



x+(2x+3)=84

We move all terms to the left:

x+(2x+3)-(84)=0

We get rid of parentheses

x+2x+3-84=0

We add all the numbers together, and all the variables

3x-81=0

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

3x=81

x=81/3

x=27

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