-8x+5x-7=20

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Solution for -8x+5x-7=20 equation: 



-8x+5x-7=20

We move all terms to the left:

-8x+5x-7-(20)=0

We add all the numbers together, and all the variables

-3x-27=0

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

-3x=27

x=27/-3

x=-9

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