x+2x+4x=105

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Solution for x+2x+4x=105 equation:



x+2x+4x=105
We move all terms to the left:
x+2x+4x-(105)=0
We add all the numbers together, and all the variables
7x-105=0
We move all terms containing x to the left, all other terms to the right
7x=105
x=105/7
x=15

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