21x+4=28

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Solution for 21x+4=28 equation: 



21x+4=28

We move all terms to the left:

21x+4-(28)=0

We add all the numbers together, and all the variables

21x-24=0

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

21x=24

x=24/21

x=1+1/7

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