ljognson191 ljognson191

29-11-2020
Mathematics

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the sum of two numbers is 45 and the different is 21.what are the numbers

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meowmeow223334 meowmeow223334

29-11-2020

a + b = 45
a - b = 21
a = 21 + b
Use substitution
21 + b + b = 45
2b = 24
b = 12
45 - 12 = 33
The numbers are 33 and 12

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