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-2(2x+5)=-x-3x+12

We move all terms to the left:

-2(2x+5)-(-x-3x+12)=0

We add all the numbers together, and all the variables

-2(2x+5)-(-4x+12)=0

We multiply parentheses

-4x-(-4x+12)-10=0

We get rid of parentheses

-4x+4x-12-10=0

We add all the numbers together, and all the variables

-22!=0

There is no solution for this equation

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