Question

What is the value of a such that the point (a, 4) is part of the solution set for the equation 4x + 2y

36?
-8
-2
7
10

Answer 1

7

Explanation:

Given expression:

4x + 2y = 36

coordinates = (a,4)

Solution:

From the given coordinates;

x = a

y = 4

4x + 2y = 36

Substitute for the values and find "a"

4a + 2(4) = 36

4a + 8 = 36

4a = 36 - 8

4a = 28

a = 7

The solution is 7