Kaedon H.

asked • 11/09/20

The sum of two numbers is 11 and their difference is 3 what are the two numbers

The sum of two numbers is 11 and their difference is 3 what are the two numbers. What's the answer??? Please respond fast! :(

Delhyi O.

dont now
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05/15/21

Maijda M.

i dont know
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05/22/21

1 Expert Answer

By:

Orly R. answered • 11/09/20

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5 (5)

College Student with Experience in Elementary Education

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To start, we can set up two equations.

x + y = 11 and x - y = 3

We now need to solve for one of these variables in terms of the other. I am choosing to solve for x, but either way will work. I'm using the second equation and solving for x by adding y to each side, which gives me

x = 3 + y

Now that I have a value for x, I can plug this into my first equation

3 + y + y = 11

Combining like terms gives me

3 + 2y = 11

Subtracting 3 from both sides leaves

2y = 8

And dividing by 2 to solve for y gets

y = 4

We now know one number, and to solve for the other we can plug our y value into either equation

x + 4 = 11

Subtracting 4 from both sides yields the x value

x = 7


So the two numbers are 4 and 7


Upvote • 2 Downvote
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Reported

Cassidy E.

Wrong
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12/25/20

Cassidy E.

sorry its 14 and 7 bye
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12/25/20

Orly R.

Hi Cassidy! The question asks for numbers with a sum of 11 and a difference of 3. 14 and 7 have a sum of 21 and a difference of 7, so those two numbers would not be correct answers to this problem.
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12/25/20

Alyx W.

that is correct
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01/05/21

Nikki R.

14 and 7 make 21 and subtract 14 and 7 it makes 7
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01/12/21

Nikki R.

X=21 Y=7
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01/12/21

Isabella L.

wats the anser??!!
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01/12/21

Hi M.

Thank you so much Orly the answer is correct!
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03/10/21

Isabella Y.

oh ok
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04/22/21

Delhyi O.

yay
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05/15/21

Maria D.

Just so you guys know the big number is 7 so you put tat in the first box and in the second box is the smaller number you put 4 and you will get it right.
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09/21/21

Delilah C.

The answer is 7 and 4 Orly you are wrong do the math . I play prodigy a math game and as soon as i put you answer in it said it was wrong then it gave me the answer 7 and 4 computers never lie but you lie sorry BYE
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10/07/21

Elayna T.

correct
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10/23/21

Elayna T.

good job
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10/23/21

Alexis G.

what is the sum for 16 and their difference is 4
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11/01/21

Olivia A.

What?????
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11/08/21

Alexa B.

The correct answer is 7 and 4 thank you Maria D and Delilah C
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11/27/21

Alexa B.

I love Delilahs answer bye!
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11/27/21

Andrea B.

It's 8 and 3
Report

11/22/22

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