tooty3
tooty3 tooty3
  • 28-12-2016
  • Mathematics
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Help evaluating the question

Help evaluating the question class=

Respuesta :

kaevras
kaevras kaevras
  • 28-12-2016
Just slot the value of x (which is 20), everywhere you see the letter x.

Similarly, slot the value of y (which is 17), everywhere you see the letter y.


So forth,

x + 8 - y

becomes

20 + 8 - 17

which evaluates to 11.
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