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Please please help!!!! Which ordered pair is a solution of this equation? 3x - 7y = 28 Click on the correct answer A. (-4,1) B. (0,-4) C. (-4,0) D. (1,-4)
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2 votes
Please please help!!!!

Which ordered pair is a solution of this
equation?
3x - 7y = 28
Click on the correct answer
A.
(-4,1)


B.
(0,-4)


C.
(-4,0)


D.
(1,-4)

User Vishal Shah
by
8.0k points

2 Answers

7 votes
The answer is B
First you plug in 0 for x and 3(0) is 0 so you are left with -7y = 28 so you solve that 28/-7 is -4. Then you plug that back into your original equation
3x -7(-4) = 28
3x + 28 = 28
-28. -28
3x = 0
Divide by 3
X= 0
y = -4
(0,-4)
User Drekbour
by
8.1k points
5 votes
I believe the answer is B, I substituted it in and it was 3(0) - 7(-4) = 28
0+28=28
28=28
User Ardit Hyka
by
7.9k points
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