arianna666 arianna666
  • 24-09-2018
  • Mathematics
contestada

The sum of three consecutive numbers is 243. What is the third number?

Respuesta :

barryswindler
barryswindler barryswindler
  • 25-09-2018
three consecutive numbers can be written as x, x+1, and x+2, but they also can be written x, x-1, and x-2 where x is the biggest number.

sum means adding... so

[tex]x + x - 1 + x - 2 = 243[/tex]
combine like terms and solve for x!
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