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16-04-2022
Mathematics

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The sum of two numbers is 55. Their difference is −1. Find the numbers.

Respuesta :

16-04-2022

Step-by-step explanation:

lets say the first is x and the second is y then we can say

x+y=55 ......1

x-y= -1 .......2

by adding 1 with 2 then

x+y+x-y=55+(-1)

==> 2x= 55-1=54

==> x= 54/2=28

if we put x=28 in the 2nd equation then

28-y= -1

==> y=29

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