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leraogai
@leraogai
August 2022
1
22
Report
X+187:11=21
16*25-28x=612:3
27:x+405:9=48
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ivawka2006
Verified answer
X+187:11=21
х+17=21
х=21-17
х=4
16*25-28x=612:3
400-28х=204
28х=400-204
28х=196
х=196:28
х=7
27:x+405:9=48
27:х+45=48
27:х=48-45
27:х=3
х=27:3
х=9
104 votes
Thanks 249
ivawka2006
исправила, очепятка
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Answers & Comments
Verified answer
X+187:11=21х+17=21
х=21-17
х=4
16*25-28x=612:3
400-28х=204
28х=400-204
28х=196
х=196:28
х=7
27:x+405:9=48
27:х+45=48
27:х=48-45
27:х=3
х=27:3
х=9