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The numbers x and y have a sum of 1 and a difference of 11. How do I write a system of equations to represent this information?
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The numbers x and y have a sum of 1 and a difference of 11. How do I write a system of equations to represent this information?
asked
May 5, 2016
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The numbers x and y have a sum of 1 and a difference of 11.
How do I write a system of equations to represent this information?
Mathematics
high-school
ATHellboy
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ATHellboy
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1
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sum means add
difference means subttract
x+y=1
x-y=11
add the 2 equations together
2x+0y=12
divide 2
x=6
subitute
6+y=1
subtract 6
y=-5
x=6
y=-5
Shariff
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May 9, 2016
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Shariff
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