7-4x=42+x

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Solution for 7-4x=42+x equation: 



7-4x=42+x

We move all terms to the left:

7-4x-(42+x)=0

We add all the numbers together, and all the variables

-4x-(x+42)+7=0

We get rid of parentheses

-4x-x-42+7=0

We add all the numbers together, and all the variables

-5x-35=0

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

-5x=35

x=35/-5

x=-7

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