Question

(07.01) Which of the values for x and y make the equation 2x + 3y + 4 = 15 true? x = 6, y = 3 x = 3, y = 5 x = 6, y = 4 x = 1, y = 3

Answer 1

D. x= 1, y = 3​

Explanation:

I took the test

Answer 2

x = 1, y = 3

Explanation:

Given:

• 2x + 3y + 4 = 15 ⇒ 2x + 3y = 11

Now let's check the pairs of x and y:

x = 6, y = 3

• 2x + 3y = 2*6 + 3*3 = 12 + 6 = 18 ≠ 11
• incorrect

x = 3, y = 5

• 2x + 3y = 2*3 + 3*5 = 6 + 15 = 21 ≠ 11
• incorrect

x = 6, y = 4

• 2x + 3y = 2*6 + 3*4 = 12 + 12 = 24 ≠ 11
• incorrect

x = 1 , y = 3

• 2x + 3y = 2*1 + 3*3 = 2 + 9 = 11
• correct