(3x+45)=81

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Solution for (3x+45)=81 equation: 



(3x+45)=81

We move all terms to the left:

(3x+45)-(81)=0

We get rid of parentheses

3x+45-81=0

We add all the numbers together, and all the variables

3x-36=0

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

3x=36

x=36/3

x=12

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