12x-42-2x=7+3x

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Solution for 12x-42-2x=7+3x equation: 



12x-42-2x=7+3x

We move all terms to the left:

12x-42-2x-(7+3x)=0

We add all the numbers together, and all the variables

12x-2x-(3x+7)-42=0

We add all the numbers together, and all the variables

10x-(3x+7)-42=0

We get rid of parentheses

10x-3x-7-42=0

We add all the numbers together, and all the variables

7x-49=0

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

7x=49

x=49/7

x=7

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