Get insightful responses to your questions quickly and easily on IDNLearn.com. Receive prompt and accurate responses to your questions from our community of knowledgeable professionals ready to assist you at any time.

Given expression:
[tex]\[ \frac{p+7}{7} - \frac{p-7}{7} \][/tex]

Which of the following is equivalent to the given expression?

Choose one answer:
A. [tex]\(\frac{p-p}{7}\)[/tex]
B. [tex]\(\frac{p+p}{7}\)[/tex]
C. [tex]\(\frac{7+7}{7}\)[/tex]
D. [tex]\(\frac{7-7}{7}\)[/tex]


Sagot :

To determine which of the given options is equivalent to the expression [tex]\(\frac{p+7}{7} - \frac{p-7}{7}\)[/tex], let's simplify the expression step-by-step.

1. Write the given expression:

[tex]\[ \frac{p+7}{7} - \frac{p-7}{7} \][/tex]

2. Combine the terms over a common denominator:

Since both terms already have the same denominator (7), we can combine them directly:

[tex]\[ \frac{(p+7) - (p-7)}{7} \][/tex]

3. Distribute and simplify the numerator:

Simplify the expression inside the numerator:

[tex]\[ (p + 7) - (p - 7) \][/tex]

This becomes:

[tex]\[ p + 7 - p + 7 \][/tex]

Combine like terms:

[tex]\[ p - p + 7 + 7 = 0 + 14 = 14 \][/tex]

So, the simplified numerator is 14.

4. Write the simplified expression with the new numerator:

[tex]\[ \frac{14}{7} \][/tex]

5. Simplify the fraction:

[tex]\[ \frac{14}{7} = 2 \][/tex]

Given this simplification, we need to check which option matches the value 2.

- (A) [tex]\(\frac{p - p}{7} = \frac{0}{7} = 0\)[/tex]

- (B) [tex]\(\frac{p + p}{7} = \frac{2p}{7}\)[/tex] (This is not a constant and does not equal 2)

- (C) [tex]\(\frac{7 + 7}{7} = \frac{14}{7} = 2\)[/tex]

- (D) [tex]\(\frac{7 - 7}{7} = \frac{0}{7} = 0\)[/tex]

The option that equals 2 is (C).

Thus, the equivalent expression to [tex]\(\frac{p+7}{7} - \frac{p-7}{7}\)[/tex] is:

(C) [tex]\(\frac{7+7}{7}\)[/tex]