-3x-9=7.5

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Solution for -3x-9=7.5 equation: 



-3x-9=7.5

We move all terms to the left:

-3x-9-(7.5)=0

We add all the numbers together, and all the variables

-3x-16.5=0

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

-3x=16.5

x=16.5/-3

x=-5+1/2

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