Which ordered pair in the form (a, b) is a solution of this equation?

7a – 5b = 28

A.
(4, 0)

B.
(0, 4)

C.
(–2, –3)

D.
(–3, –2)

Question

Which ordered pair in the form (a, b) is a solution of this equation?

7a – 5b = 28
 
 
 A.
(4, 0)
 
 B.
(0, 4)
 
 C.
(–2, –3)
 
 D.
(–3, –2)

anonymous · Answer

Plug the X and Y into the A and B to try to find your answer.
So, to test answer A, you would do:$$7(4) - 5(0) = 28$$ And so on. Which do you think it is?

anonymous · Answer

@Nightbot

anonymous · Answer

It's A isn't it? @Nibby

anonymous · Answer

Well, no. If we times 7 by 4 we get 28, and if we minus 5 we get 23. So, no, the answer is not A. Doing what I did with the rest of the answers, what do you think it is?

anonymous · Answer

@Nibby sorry i ran outta time so i can't do the assessment and gotta go to science fast but thanks for the help