3x+9+5x=-15

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Solution for 3x+9+5x=-15 equation: 



3x+9+5x=-15

We move all terms to the left:

3x+9+5x-(-15)=0

We add all the numbers together, and all the variables

8x+24=0

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

8x=-24

x=-24/8

x=-3

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