21x=-13-9

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Solution for 21x=-13-9 equation: 



21x=-13-9

We move all terms to the left:

21x-(-13-9)=0

We add all the numbers together, and all the variables

21x-(-22)=0

We add all the numbers together, and all the variables

21x+22=0

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

21x=-22

x=-22/21

x=-1+1/21

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