X+2x+4x=7

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Solution for X+2x+4x=7 equation: 



X+2X+4X=7

We move all terms to the left:

X+2X+4X-(7)=0

We add all the numbers together, and all the variables

7X-7=0

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

7X=7

X=7/7

X=1

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