erinwalters7899 erinwalters7899
  • 12-02-2017
  • Mathematics
contestada

One number is eight more than twice another. If their difference is 25, what is the larger number?

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trombonebookworm
trombonebookworm trombonebookworm
  • 12-02-2017
You can set up an system of equations
x=2y+8
x-y=25

Substitute x in to the second equation
2y+8-y=25
y+8=25
y=17

Substitute the y back in to the first equation.
x=2(17)+8=42
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