x+.5x+x=15

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Solution for x+.5x+x=15 equation: 



x+.5x+x=15

We move all terms to the left:

x+.5x+x-(15)=0

We add all the numbers together, and all the variables

2.5x-15=0

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

2.5x=15

x=15/2.5

x=6

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