-x-5=4x+15

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Solution for -x-5=4x+15 equation: 



-x-5=4x+15

We move all terms to the left:

-x-5-(4x+15)=0

We add all the numbers together, and all the variables

-1x-(4x+15)-5=0

We get rid of parentheses

-1x-4x-15-5=0

We add all the numbers together, and all the variables

-5x-20=0

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

-5x=20

x=20/-5

x=-4

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