21x-7=17+4

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Solution for 21x-7=17+4 equation: 



21x-7=17+4

We move all terms to the left:

21x-7-(17+4)=0

We add all the numbers together, and all the variables

21x-7-21=0

We add all the numbers together, and all the variables

21x-28=0

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

21x=28

x=28/21

x=1+1/3

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