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15-10-2016
Mathematics

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The sum of two numbers is 18. the difference of two numbers is -2. find the numbers

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texaschic101 texaschic101

15-10-2016

a + b = 18
a - b = -2
-------------add
2a = 16
a = 16/2
a = 8

a + b = 18
8 + b = 18
b = 18 - 8
b = 10

ur numbers are 8 and 10

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