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Fredrik Wendt · Answer 1 · 2017-09-10T18:10:19+0000

Well... its very simple, you can do it algebraically. If the first number is X and the second number is half of X then you have:

X + X/2 = 30
2X/2 + X/2 = 30 (2X/2 = X)
3X/2 = 30
3X = 60
X = 20

So the first number is 20, the second number is 10

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