-9x+13=21

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Solution for -9x+13=21 equation: 



-9x+13=21

We move all terms to the left:

-9x+13-(21)=0

We add all the numbers together, and all the variables

-9x-8=0

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

-9x=8

x=8/-9

x=-8/9

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