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- anonymous

Hannah tells you that when variables are in the denominator, the equation four over seven plus eight over x equals one over two becomes solvable. She explains, "There is a value for x that makes the denominator zero, and you can't divide by zero."

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- anonymous

- jamiebookeater

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- anonymous

4/5 + 3/x =1/2

- anonymous

You can solve it by multiplying by the common denominator. Do you what it is?

- anonymous

umm 10x?

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- anonymous

Right, so if you multiply all the fractions by 10x they will cancel

- anonymous

ok i got 8x+30/ 10x =5x/10x

- anonymous

|dw:1437252772767:dw|

- anonymous

so -10?

- anonymous

how would -1o be the answer?

- anonymous

-10 is the solution to the equation.

- anonymous

I know. But doesn't that mean George is right?

- anonymous

no, it means he's wrong. There is a value for x that makes the denominator 0, but the equation is still solvable. -10 is the solution for x. 0 is the value where it wouldn't have a solution. Like if you were trying to graph 3/x, you would be able to for all values except 0

- anonymous

Ohhh! Thanks sir<3

- anonymous

yw

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