Which of the following values for x and y make the equation 4x + 2y + 3 = 19 true?
x = 5, y = 3
x = 4, y = 5
x = 3, y = 2
x = 2, y = 5

To answer the question above, substitute the values of x from each choice then solve for y. This is shown below.

A. x = 5,  4(5) + 2y + 3 = 19 , y = -7

B. x = 4,   4(4) + 2y + 3 = 19 , y = 0

C. x = 3,   4(3) + 2y + 3 = 19 , y = 2

D. x = 2,   4(2) + 2y + 3 = 19 , y = 4

From the calculations above, only the third choice has a similar value of y to the value in calculations. 

Thus, the answer is letter C.