-9x-3x=-20

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Solution for -9x-3x=-20 equation: 



-9x-3x=-20

We move all terms to the left:

-9x-3x-(-20)=0

We add all the numbers together, and all the variables

-12x+20=0

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

-12x=-20

x=-20/-12

x=1+2/3

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