Question

If x = 12 and y = 5, what is the value of the following expression?
x - 9 + 4y
A.
44
B.
51
C.
23
D.
16

Answer 1

Answer:

C. 23

Step-by-step explanation:

x = 12

y = 5

x - 9 + 4y

(12) - 9 + 4(5)

12 - 9 + 20 = 23

Answer 2

Answer: C. 23

Step-by-step explanation:

We are given the expression $x-9+4y$ and we are given the values of x, and y. All we need to do it substitute the values of x and y into the expression and evaluate it.

Solving:

Given: $x=12, y=5$

Evaluating:

$\[\begin{aligned}x - 9 + 4y = 12 - 9 + 4(5) \\= 12 - 9 + 20 \\= 3 + 20 \\= 23\end{aligned}\]$

When we plugged in the values for x and y, we got 23 as the result of the expression meaning that C is correct.

That's it!