adriantheclashroyaln
17.10.2020 •
Mathematics
Help pls ?? anyone ?
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Ответ:
Theyre both going to be 27.
Step-by-step explanation:
2n+21=4n+15
-2n -2n
21=2n+15
-15 -15
3=n
2n+21
2(3)+21=27
4n+15
4(3)+15=27
:)
Ответ: