stuffrandom770 stuffrandom770

05-02-2017
Mathematics

contestada

the sum of two numbers is 55 and the difference is 21. what are the numbers?

Respuesta :

D819R197 D819R197

05-02-2017

x + y = 55
x - y = 21
2x = 76
x =38
38 + y = 55
y =17
(38, 17)

Answer Link

wolf1728 wolf1728

05-02-2017

A) x + y = 55
B) x -y =21

Adding both equations:
2 x = 34
x = 17
y = 38

Answer Link

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