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anonymous
 5 years ago
8x/(x8)(x10)=9x+2
anonymous
 5 years ago
8x/(x8)(x10)=9x+2

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Is this \(\frac{8x}{(x8)(x10)} = 9x+2\)?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The first thing you want to do is get rid of the denominator by multiplying it to the other side.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so the entire (x8)(x10)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Be careful, you can multiply the denominator to the other side provided the x is not 8 or x is not 10, otherwise we cannot just simply multiply like that

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you can't multiply...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.08x/(x8)(x10)=9x+2 [8x/(x8)(x10)] (9x+2) = 0 [8x (9x+2)(x8)(x10)] / [(x8)(x10)] = 0 for the fraction on the left to be zero, the numerator must be zero. So 8x (9x+2)(x8)(x10) = 0

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0That is the explanation, but as you can see, it has the same effect as multiply the denominator to the right side and then bring the right side to the left..

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yep. The key to problems that have variables in the denominator is checking your answers when you solve. If you get that \(x=8\) or \(x=10\) once you solve, you have to say that these aren't valid answers, because they would make the denominator equal zero.
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