gloryxu
25.08.2019 •
Mathematics
What is a number 27 greater than twice the opposite of itself?
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Ответ:
opposite number: -n
twice the opposite number: 2·(-n)=-2n
27 greater then -2n: -2n+27
n = -2n + 27
n + 2n = 27
3n = 27
3·n = 3·9
n = 9
Ответ:
Step-by-step explanation:
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