Welcome to Westonci.ca, your go-to destination for finding answers to all your questions. Join our expert community today! Join our platform to connect with experts ready to provide precise answers to your questions in different areas. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

If [tex]\( PR = 4x - 2 \)[/tex] and [tex]\( RS = 3x - 5 \)[/tex], which expression represents [tex]\( PS \)[/tex]?

A. [tex]\( x - 7 \)[/tex]
B. [tex]\( x - 3 \)[/tex]
C. [tex]\( 7x - 7 \)[/tex]
D. [tex]\( 7x + 3 \)[/tex]


Sagot :

To determine the expression that represents [tex]\( PS \)[/tex], given that [tex]\( PR = 4x - 2 \)[/tex] and [tex]\( RS = 3x - 5 \)[/tex], we need to find [tex]\( PS \)[/tex] by adding the expressions for [tex]\( PR \)[/tex] and [tex]\( RS \)[/tex]:

1. First, let's write down the given expressions:
- [tex]\( PR = 4x - 2 \)[/tex]
- [tex]\( RS = 3x - 5 \)[/tex]

2. To find [tex]\( PS \)[/tex], we add [tex]\( PR \)[/tex] and [tex]\( RS \)[/tex]:
[tex]\[ PS = PR + RS \][/tex]
Substituting the expressions for [tex]\( PR \)[/tex] and [tex]\( RS \)[/tex] into the equation, we get:
[tex]\[ PS = (4x - 2) + (3x - 5) \][/tex]

3. Next, we combine like terms in the expression:
[tex]\[ PS = 4x + 3x - 2 - 5 \][/tex]

4. Simplifying this, we combine the coefficients of [tex]\( x \)[/tex]:
[tex]\[ 4x + 3x = 7x \][/tex]

5. We also combine the constant terms:
[tex]\[ -2 - 5 = -7 \][/tex]

6. Therefore, the simplified expression for [tex]\( PS \)[/tex] is:
[tex]\[ PS = 7x - 7 \][/tex]

Hence, the correct expression that represents [tex]\( PS \)[/tex] is [tex]\( \boxed{7x - 7} \)[/tex].