x=28-3x

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Solution for x=28-3x equation: 



x=28-3x

We move all terms to the left:

x-(28-3x)=0

We add all the numbers together, and all the variables

x-(-3x+28)=0

We get rid of parentheses

x+3x-28=0

We add all the numbers together, and all the variables

4x-28=0

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

4x=28

x=28/4

x=7

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