x+7=42+3x+12

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



x+7=42+3x+12

We move all terms to the left:

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

We add all the numbers together, and all the variables

x-(3x+54)+7=0

We get rid of parentheses

x-3x-54+7=0

We add all the numbers together, and all the variables

-2x-47=0

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

-2x=47

x=47/-2

x=-23+1/2

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