word problem help

[april.james]

how do I solve: 3 consecutive odd integers when sum of 1st and 3rd is 21 less than 3 times the 2nd

 

[Mrspi]

how do I solve: 3 consecutive odd integers when sum of 1st and 3rd is 21 less than 3 times the 2nd

I guess the first step would be to define some expressions to represent those consecutive odd integers.

Let x = the first of the three consecutive odd integers

Now...what do you know about consecutive odd integers? If x is the first of a series of consecutive odd integers, how would you represent the second one? And the third one?

Let us know your thoughts on this, and then we can proceed.