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x*y represents the fraction (x+y)/(x-y). Express the number represented by 12*(7*5) in its simplest form

Sagot :

Answer:

3

Step-by-step explanation:

given

x *y = [tex]\frac{x+y}{x-y}[/tex]

Then the number represented by 12*(7*5)

calculate 7*5

= [tex]\frac{7+5}{7-5}[/tex] = [tex]\frac{12}{2}[/tex] = 6 , then

12*6

= [tex]\frac{12+6}{12-6}[/tex] = [tex]\frac{18}{6}[/tex] = 3

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