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

A. [tex]x - 7[/tex]

B. [tex]x - 3[/tex]

C. [tex]7x - 7[/tex]

D. [tex]7x + 3[/tex]



Answer :

To determine which expression represents [tex]\( PS \)[/tex], you need to sum the given expressions for [tex]\( PR \)[/tex] and [tex]\( RS \)[/tex].

Given:
[tex]\( PR = 4x - 2 \)[/tex]
[tex]\( RS = 3x - 5 \)[/tex]

We want to find [tex]\( PS \)[/tex], which is the sum of [tex]\( PR \)[/tex] and [tex]\( RS \)[/tex]:

[tex]\[ PS = PR + RS \][/tex]

Substitute the given expressions for [tex]\( PR \)[/tex] and [tex]\( RS \)[/tex]:

[tex]\[ PS = (4x - 2) + (3x - 5) \][/tex]

Combine like terms:

[tex]\[ PS = 4x + 3x - 2 - 5 \][/tex]
[tex]\[ PS = 7x - 7 \][/tex]

Therefore, the expression that represents [tex]\( PS \)[/tex] is [tex]\( 7x - 7 \)[/tex].

So, the correct answer is:

[tex]\[ 7x - 7 \][/tex]