66.7k views
0 votes
The sum of three consecutive numbers is 72. What are the smallest of these numbers?

2 Answers

4 votes

x , x+1, x+2

then your sum would be x + ( x + 1 ) + ( x + 2 ) = 72

so now just add em up

3x + 3 = 72

x = 69 / 3

x = 23

Hope this helps!

User Lemonseed
by
8.0k points
4 votes

let "a number" = x

(x) + (x + 1) + (x + 2) = 72

Simplify. Combine like terms

3x + 3 = 72

Isolate the x. Note the equal sign. What you do to one side, you do to the other. Do the opposite of PEMDAS.

3x + 3 (-3) = 72 (-3)

3x = 72 - 3

3x = 69

3x/3 = 69/3

x = 69/3

x = 23

23 is the smallest number

hope this helps

User Lzh
by
7.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories