emilyrocks618
emilyrocks618 emilyrocks618
  • 08-02-2019
  • Mathematics
contestada

Find the value of two numbers if their sum is 120 and their difference is 40.

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noxes noxes
  • 08-02-2019
x+y=120
x-y=40
x=40+y
40+y+y=120
2y=80
y=40
x=80
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