-3x+-5x=21-8x

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Solution for -3x+-5x=21-8x equation: 



-3x+-5x=21-8x

We move all terms to the left:

-3x+-5x-(21-8x)=0

We add all the numbers together, and all the variables

-3x-5x-(-8x+21)+=0

We add all the numbers together, and all the variables

-8x-(-8x+21)=0

We get rid of parentheses

-8x+8x-21=0

We add all the numbers together, and all the variables

-21!=0

There is no solution for this equation

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