Question

3x + 12y = 9 x + __ y = 3 A) −12 B) −4 C) 12 D) 4

Answer 1

Answer: 4

Explanation:

3x - 12y - 9 = 9x + (x + 4y - 3)

Answer 2

3x + 12y = 9

x + __ y = 3

Divide the first equation by 3 to get the second equation:

3x /3 = x

9/3 = 3

12y /3 = 4y

The answer would be D. 4