hollis79
12.07.2019 •
Mathematics
The sum of two numbers is 3. five times the larger number plus four times the smaller number is 29. find the numbers
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Ответ:
x + y = 3
5x + 4y = 29
so that means y=3 - x. we can sub this in
5x + 4(3-x) = 29
5x + 12 - 4x = 29
x = 17
then y=3-x=3-17=-14
so it's 17 and -14
Ответ: