4x-5x=x+20

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Solution for 4x-5x=x+20 equation: 



4x-5x=x+20

We move all terms to the left:

4x-5x-(x+20)=0

We add all the numbers together, and all the variables

-1x-(x+20)=0

We get rid of parentheses

-1x-x-20=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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