hridhayotham200 hridhayotham200

03-04-2018
Mathematics

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Find two numbers, if …
Their sum is 3 and their difference is 21
PLZ

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Аноним Аноним

03-04-2018

x+y=3
x-y=21

x=3-y

3-y-y=21
-2y+3=21
-2y=18
y=-9

x = 3-(-9) = 12

Two numbers are 12 and -9.

Hope this helps.

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