roxequartz
14.10.2019 •
Mathematics
Plz show me and give me examples 19 20 21 and 22
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Ответ:
20. (3•5)•2=3•(5•2)
21. 54•1=54
22. 12(a+7)=12a+84
Ответ:
x = 0.5 + 8
Step-by-step explanation: