72-x=3x+4

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Solution for 72-x=3x+4 equation: 



72-x=3x+4

We move all terms to the left:

72-x-(3x+4)=0

We add all the numbers together, and all the variables

-1x-(3x+4)+72=0

We get rid of parentheses

-1x-3x-4+72=0

We add all the numbers together, and all the variables

-4x+68=0

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

-4x=-68

x=-68/-4

x=+17

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