4x-28=21

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Solution for 4x-28=21 equation: 



4x-28=21

We move all terms to the left:

4x-28-(21)=0

We add all the numbers together, and all the variables

4x-49=0

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

4x=49

x=49/4

x=12+1/4

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