Find solutions to your questions with the help of IDNLearn.com's expert community. Get accurate answers to your questions from our community of experts who are always ready to provide timely and relevant solutions.

QUESTION 21

The sum of three consecutive integers is -14. What are the three integers?

Write an equation that properly models the problem. Let the letter [tex]\( x \)[/tex] represent the smallest of these three integers.


Sagot :

To solve the problem of finding three consecutive integers whose sum is -14, we start by defining the integers and forming an equation.

1. Define the integers:
- Let [tex]\( x \)[/tex] represent the smallest of the three consecutive integers.
- Therefore, the next two integers would be [tex]\( x+1 \)[/tex] and [tex]\( x+2 \)[/tex].

2. Form the equation based on the sum:
- The sum of these three consecutive integers is given by:
[tex]\[ x + (x + 1) + (x + 2) = -14 \][/tex]

3. Simplify the equation:
- Combine like terms:
[tex]\[ x + x + 1 + x + 2 = -14 \][/tex]
[tex]\[ 3x + 3 = -14 \][/tex]

4. Solve for [tex]\( x \)[/tex]:
- First, isolate the term with [tex]\( x \)[/tex] by subtracting 3 from both sides:
[tex]\[ 3x + 3 - 3 = -14 - 3 \][/tex]
[tex]\[ 3x = -17 \][/tex]
- Next, solve for [tex]\( x \)[/tex] by dividing both sides by 3:
[tex]\[ x = \frac{-17}{3} \][/tex]

5. Interpret the result:
- The value [tex]\( x = \frac{-17}{3} \)[/tex] is not an integer. Since [tex]\( x \)[/tex] must represent an integer (the smallest one in this context), it indicates there is no integer solution for this equation.
- The problem necessitates that [tex]\( x \)[/tex] be an integer, hence the sum of three consecutive integers cannot equal -14 under these conditions.

Therefore:
[tex]\[ \boxed{\text{The sum of three consecutive integers cannot be -14 with integer values.}} \][/tex]