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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4/5 + 3/x =1/2
You can solve it by multiplying by the common denominator. Do you what it is?
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Right, so if you multiply all the fractions by 10x they will cancel
ok i got 8x+30/ 10x =5x/10x
how would -1o be the answer?
-10 is the solution to the equation.
I know. But doesn't that mean George is right?
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