12x+30-15x+20=-1

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Solution for 12x+30-15x+20=-1 equation: 



12x+30-15x+20=-1

We move all terms to the left:

12x+30-15x+20-(-1)=0

We add all the numbers together, and all the variables

-3x+51=0

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

-3x=-51

x=-51/-3

x=+17

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