X+x+1.5x+3.5x-12=86

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Solution for X+x+1.5x+3.5x-12=86 equation:



X+X+1.5X+3.5X-12=86
We move all terms to the left:
X+X+1.5X+3.5X-12-(86)=0
We add all the numbers together, and all the variables
7X-98=0
We move all terms containing X to the left, all other terms to the right
7X=98
X=98/7
X=14

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