6x-84=42-3x

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Solution for 6x-84=42-3x equation: 



6x-84=42-3x

We move all terms to the left:

6x-84-(42-3x)=0

We add all the numbers together, and all the variables

6x-(-3x+42)-84=0

We get rid of parentheses

6x+3x-42-84=0

We add all the numbers together, and all the variables

9x-126=0

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

9x=126

x=126/9

x=14

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