4x+12x=120

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Solution for 4x+12x=120 equation: 



4x+12x=120

We move all terms to the left:

4x+12x-(120)=0

We add all the numbers together, and all the variables

16x-120=0

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

16x=120

x=120/16

x=7+1/2

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