To solve the problem we must know about the Like terms and expressions.
<h3>What is an Expression?</h3>
In mathematics, an expression is a set of numbers, variables, and mathematical operations formed according to rules.
Given ;

To solve the algebraic expression,

To solve the problem we must know about the Like terms and expressions.
Learn more about Expression:
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Answer:
It is not C got it wrong.
Step-by-step explanation:
Hey there!!
Let us take the first number as ' x '
According to the question
The second number exceeds the first number by 15
hence, the second number = x+15
The sum of both the numbers = 69
which means
x + x + 15 = 69
2x+15 = 69
Subtracting by 15 on both sides
2x + 15 - 15 = 69 - 15
2x = 54
dividing by 2 on both sides
x = 27
first number = 27
second number = 27 + 15
= 42
Hope my answer helps!