x+28=4x+7

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Solution for x+28=4x+7 equation: 



x+28=4x+7

We move all terms to the left:

x+28-(4x+7)=0

We get rid of parentheses

x-4x-7+28=0

We add all the numbers together, and all the variables

-3x+21=0

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

-3x=-21

x=-21/-3

x=+7

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