## pinklion23 one year ago Which of the ordered pairs in the form (x, y) is a solution of this equation? https://static.k12.com/bank_packages/files/media/mathml_64c9ba5aa2aeeeced75887bdf6c858db5c69d76f_1.gif A.The first is not a solution, but the second is. B.Both are solutions. C.Neither is a solution. D.The first is a solution, but the second is not.

1. pinklion23

@Nnesha

2. pinklion23

@triciaal

3. dakid88

@mbma526

4. Nnesha

substitute x and y for each pair then solve if you get equal sides then order pair is a solution

5. Nnesha

$\huge\rm 5x-\frac{ y }{ 3 }=13$ substitute (x,y) for (2,-9) replace x with 2 and y with -9

6. triciaal

as above. if the substitution (x,y) makes the equation true then (x,y) is a solution.

7. pinklion23

$10-\frac{ -2 }{ 3}=13$

8. triciaal

y = -9

9. Nnesha

y= -9 (2,-9)

10. pinklion23

ok so then the answer is D?

11. Nnesha

did you try 2nd one ?

12. pinklion23

oh right i have to do that on lol :)

13. Nnesha

yes substitute (x,y) for (3,-6)

14. pinklion23

$15-\frac{ -6 }{ 3 }=13$

15. pinklion23

right?

16. Nnesha

looks good what did you get at left side ?

17. pinklion23

um well -6/3=-2 so then 15+2does not equal 13 right

18. Nnesha

perfect!

19. pinklion23

yea can you help me with one or two more please x)

20. Nnesha

i'll try

21. pinklion23

Which pair are solutions to the equation? 4xy + 8 = 36 A.(1, 7) and (4, 9) B.(7, 1) and (3, 2) C.(1, 7) and (7, 1) D.(4, 9) and (3, 2)

22. pinklion23

@Nnesha

23. Nnesha

same steps

24. pinklion23

so A is wrong

25. pinklion23

B is wrong

26. pinklion23

c is right and D is wrong so C is the answer

27. Nnesha

why do you think C is correct ?? :=)

28. pinklion23

because 4*1*7=28+1=36 and 4*7*1+8=36 too

29. Nnesha

good work!

30. pinklion23

thx one more pls this one is harder

31. pinklion23

Which ordered pairs in the form (x, y) are solutions to the equation (x + 6)y = 9? Choose all answers that are correct. A.(−5, 9) B.(−3, 3) C.(3, 1) D.(7, 9)

32. pinklion23

oh um brb bathroom break sorry

33. Nnesha

same steps

34. pinklion23

im back and you changed you pic :)

35. Nnesha

yee :P

36. pinklion23

so A is right

37. pinklion23

b is right

38. pinklion23

c is right

39. pinklion23

and D is wrong

40. pinklion23

am i right?

41. Nnesha

ye you got it!

42. pinklion23

thx so much that is it your awesome :)

43. Nnesha

np&thanks