the product of two numbers is -65 by 14 if one of the number is 13 by 21 find the other.
I know you written but answer is another answer= -15 by 2
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let the numbers be x and y
xy=-65/14
let x=13/21
13y=21x-65/14
13y=3x-65/2
y=3x-65/2x13
y=3x-5/2
y=-15/2
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