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misscheoneyo
24.08.2020 •
Mathematics
Solve |4n−15|=|n|.
The solutions are n=
and n=
.
Solved
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Ответ:
n=3 n=5
Step-by-step explanation:
|4n−15|=|n|
Positive
4n−15=n
Subtract 4n from each side
-15 = -3n
Divide by -3
-15/-3 = n
5 = n
negative
4n -15 = -n
Subtract 4n from each side
-15 = -5n
Divide by -5
-15/-5 = n
3 = n
Ответ:
n=3 and n=5
Step-by-step explanation:
|4n−15|=|n|
we know either
4n-15=-n or 4n=15=n
4n+n=15 4n-n=15
5n=15 3n=15
n=15/5=3 n=15/3=5
Ответ:
Step-by-step explanation:
B