3x-8x+5=-15

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Solution for 3x-8x+5=-15 equation: 



3x-8x+5=-15

We move all terms to the left:

3x-8x+5-(-15)=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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