3x+7+8x=-15

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Solution for 3x+7+8x=-15 equation: 



3x+7+8x=-15

We move all terms to the left:

3x+7+8x-(-15)=0

We add all the numbers together, and all the variables

11x+22=0

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

11x=-22

x=-22/11

x=-2

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