SOLUTION: the sum of 3 odd consecutive integers is -18. solve for x

Algebra ->  Expressions-with-variables -> SOLUTION: the sum of 3 odd consecutive integers is -18. solve for x      Log On


   



Question 55820: the sum of 3 odd consecutive integers is -18. solve for x
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
I don't think 3 odd numbers can add up to an even number, must be some mistake here. It has to be an odd number divisable by 3. Maybe they meant -15. will use that to show you the method.
:
:The 3 odd integers x, x+2, x+4
:
Just write an equation for what it says, (the word "is" usually means equal)
:
the sum of 3 odd consecutive integers is -15.
x + (x+2) + (x+4) = -15
3x + 6 + -15
3x = -15 - 6
3x = -21
x = - 7
The three numbers -7, -5, -3 = -15
: