3x+5x+4=-12

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Solution for 3x+5x+4=-12 equation: 



3x+5x+4=-12

We move all terms to the left:

3x+5x+4-(-12)=0

We add all the numbers together, and all the variables

8x+16=0

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

8x=-16

x=-16/8

x=-2

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