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let the number be 'm' & 'n'

m + n = 17

m - n = 1

Add

2m = 18

m - 18 / 2 = 9

Substituting

9 - n = 1

9 - 1 = n

n = 8

So the two numbers are '8' & '9'.

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lenpollock

Lvl 16
1y ago

What else can I help you with?