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06-02-2017
Mathematics

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A first number plus twice a second number is 8. Twice the first number plus the second totals 22. Find the numbers

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Аноним Аноним

06-02-2017

2(22-2s) + s = 23,
44 - 4s +s = 23,
-3s = -21,
s = 7, the second number.
f = 22-2s = 22 - 14 = 8, the first number?

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