Question

select the correct answer.
what is the simplified form of this expression?
(9x - 7) - (4x - 11)
a. 9x
b. 13x + 4
c. 5x + 4
d. 5x - 18

Explanation:

Step1: Remove parentheses

$(9x - 7) - (4x - 11) = 9x - 7 - 4x + 11$

Step2: Combine like terms

$9x - 4x + (-7 + 11) = 5x + 4$

Answer:

C. 5x + 4