21x-5=7+15

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Solution for 21x-5=7+15 equation: 



21x-5=7+15

We move all terms to the left:

21x-5-(7+15)=0

We add all the numbers together, and all the variables

21x-5-22=0

We add all the numbers together, and all the variables

21x-27=0

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

21x=27

x=27/21

x=1+2/7

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