7-x=4x+12

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Solution for 7-x=4x+12 equation: 



7-x=4x+12

We move all terms to the left:

7-x-(4x+12)=0

We add all the numbers together, and all the variables

-1x-(4x+12)+7=0

We get rid of parentheses

-1x-4x-12+7=0

We add all the numbers together, and all the variables

-5x-5=0

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

-5x=5

x=5/-5

x=-1

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