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25-02-2017
Mathematics

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2 numbers have a difference of 0.7 and a sum of 1

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Amena2000 Amena2000

25-02-2017

x-y = 0.7-------------(1)
x+y = 1-------------(2)

Solve simultaneously.
2x=1.7
x=1.7/2 ----- (place inside equ(1)
get y

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