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)

- anonymous

- chestercat

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- anonymous

i do not understand this plz help me i will give medal and fan!

- anonymous

i want this question step by step so i know plz

- jim_thompson5910

Let's check choice A (−5, 9)
(x + 6)y = 9
(-5 + 6)*9 = 9 ... replace x with -5 and y with 9
(1)*9 = 9
9 = 9 ... this is true, so choice A (−5, 9) is a solution
I'll let you check the others. There may be more than one answer

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## More answers

- anonymous

thank you so much it may take me like 5 min i will tag u when i have figured everything out ;)

- jim_thompson5910

alright

- anonymous

i know b is wrong

- anonymous

working on c and d

- jim_thompson5910

why is B wrong? can I see your steps?

- anonymous

c is correct

- anonymous

ok one sec

- anonymous

(3, 1)
(x+6)y = 9
(3+6) * 1 = 9
(1) * 9 = 9

- jim_thompson5910

B.
(−3, 3)

- anonymous

i did the same kind of steps for b and d and they were wrong is this right?

- anonymous

(-3,3)
(x+6)y = 9
(-3 + 6) * 9 = 27
(1) * 27 = 27
27 = 9
:( wrong

- anonymous

oops, replace the 9 with one in the second eqution

- jim_thompson5910

-3 + 6 is not equal to 1

- anonymous

i mean 3 replace the 9 with 3

- jim_thompson5910

and idk how you turned that 9 into 27

- jim_thompson5910

and I'm not sure why you replaced y with 9 when y = 3

- anonymous

OMG I DID 3 NOT -3!!!!!!!!!1

- anonymous

thank you so much for catching that let me re work it is take one sec

- anonymous

replace 9 with 27, which means b is right so it was a, b, and c

- anonymous

(-3 + 6) * 3 = 9

- jim_thompson5910

better

- anonymous

sorry for the confusion, but is d is definetly wrong

- jim_thompson5910

then you replace the `-3+6` part with `3` since `-3+6 = 3`

- jim_thompson5910

D (7,9)
(x + 6)y = 9
(7 + 6)*9 = 9
13*9 = 9
117 = 9 ... false
so you are correct about D

- anonymous

A B and C are correct i would not have known with ur help here is a medal!!!

- jim_thompson5910

yes, points A,B,C all lie on the equation while D is some point that does not lie on the line

- anonymous

do u agree @Shadowknight6263 ?

- anonymous

yez

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