Question

(4,−3)
is the correct solution to which system?(1 point)
Responses

7x+9y=55

3x+ 9y=−15
7 x plus 9 y equals 55 3 x plus 9 y equals negative 15

7x−9y=55

3x+ 9y=−15
7 x minus 9 y equals 55 3 x plus 9 y equals negative 15

7x−9y=55

3x− 9y=−15
7 x minus 9 y equals 55 3 x minus 9 y equals negative 15

7x+9y=55

3x−9y=−15

Answer 1

Plug x = 4, y = −3 into each equation:

7x − 9y = 7(4) − 9(−3) = 28 + 27 = 55 (true)
3x + 9y = 3(4) + 9(−3) = 12 − 27 = −15 (true)

So the correct system is: 7x − 9y = 55 and 3x + 9y = −15.