3x+9=6x+42

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Solution for 3x+9=6x+42 equation: 



3x+9=6x+42

We move all terms to the left:

3x+9-(6x+42)=0

We get rid of parentheses

3x-6x-42+9=0

We add all the numbers together, and all the variables

-3x-33=0

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

-3x=33

x=33/-3

x=-11

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