SOLUTION: Which of the ordered pairs (3,1), (0,-4), (-3,-7) are solutions for the equation x-y=4? Please help I dont understand how to resove this. Thank you

Algebra.Com
Question 67282: Which of the ordered pairs (3,1), (0,-4), (-3,-7) are solutions for the equation x-y=4?
Please help I dont understand how to resove this.
Thank you
Answer by ankor@dixie-net.com(22740)   (Show Source): You can put this solution on YOUR website!
Which of the ordered pairs (3,1), (0,-4), (-3,-7) are solutions for the equation x - y = 4?
:
Since they give the possible answers it's very easy. The ordered pairs represent x and y:
:
Substitute the given values for x and y and see if the equation is true
Take the 1st ordered pair: x = 3; y = 1
x - y = 4
3 - 1 = does not equal 4 so this is not the solution:
:
2nd ordered pair x = 0, y = -4
0 - (-4) = 4; a minus a minus is a plus, remember
0 + 4 = 4 so this is a solution
:
3rd ordered pair: x = -3, y = -7
-3 - (-7) = 4
-3 + 7 = 4 is true so this is a solution also
:
Did this help you?
RELATED QUESTIONS

Please help. Which of the ordered pairs (3, 1), (0,-4), (-4, 0), (-3 , -7) are... (answered by scott8148,checkley71)
Which of the ordered pairs (3,1((0,-4) (-4,0) (-3,-7) are solutions for the equation... (answered by checkley71)
Which of the ordered pairs are solutions for the equation x - y = 4? (3,1), (0, -4),... (answered by checkley75)
Which of the ordered pairs (3,1), (0,-4), (-4,0), (-3,-7) are solutions for the equation... (answered by tutorcecilia)
Which of the ordered pairs (3,1), (0,-4), (-4,0), (-3,-7) are solutions for the equation... (answered by adamchapman)
Which of the ordered pairs (3,1), (0,-4), (-4,0), (-3,-7) are solutions for the equation... (answered by chitra)
which of the ordered pairs (3,1)(0,-4)(-4,0)(-3,-7) are solutions for the equation... (answered by checkley71)
Which of the ordered pairs (3, 1), (0, –4), (–4, 0), (–3, –7) are solutions for the... (answered by checkley71)
Which of the ordered pairs (3, 1), (0, –4), (–4, 0), (–3, –7) are solutions for the... (answered by Earlsdon)