3x-21-5x=-1

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Solution for 3x-21-5x=-1 equation: 



3x-21-5x=-1

We move all terms to the left:

3x-21-5x-(-1)=0

We add all the numbers together, and all the variables

-2x-20=0

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

-2x=20

x=20/-2

x=-10

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