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Let the number by 'm' & 'n'

Hence

m + n = 27

m - n = 7

Add; this will eliminate 'n'

Hence

2m = 34

m = 34/2 = 17

When m = 17

17 + n = 27

n = 27 - 17

n = 10

So the two numbers are 10, & 17.

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lenpollock

Lvl 16
1y ago

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