D0i1sacompssrir D0i1sacompssrir

20-03-2017
Mathematics

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The difference of two numbers is 3 the sum is 13 find the numbers

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wolf1728 wolf1728

20-03-2017

x - y = 3
x + y = 13
Adding both equations
2x = 16
x = 8
y = 5

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TheOneDude123 TheOneDude123

20-03-2017

x-y=3
x+y=13

Add the two equations to get the following in order to solve for x:
2x=16
x=8

Next you substitute into x+y=13 to solve for y

8+y=13
y=5

Therefore, x=8 and y=5

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