8Xn+7=15

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Solution for 8Xn+7=15 equation: 



8XX+7=15

We move all terms to the left:

8XX+7-(15)=0

We add all the numbers together, and all the variables

8XX-8=0

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

8XX=8

X=8/1

X=8

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