21-8x=13

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Solution for 21-8x=13 equation: 



21-8x=13

We move all terms to the left:

21-8x-(13)=0

We add all the numbers together, and all the variables

-8x+8=0

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

-8x=-8

x=-8/-8

x=1

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