помогите плиз 81 номер. Created by вова1112. matematika-ru

помогите плиз 81 номер...

August 2022 1 3 Report

помогите плиз 81 номер

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irinaorlova2 Х+3.8\1\2+1\3+1\6=6.5
х+3.8\3\6+2\6+1\6=6.5
х+3.8\1=6.5
х+3.8=6.5
х=6.5-3.8
х=2.7

5.7-у\5\7*3\5*2\3=8.75
5.7-у\ 2\7=8.75
5.7-у=8.75*2\7
5.7-у=8 3\4*2\7
5.7-х=35\4*2\7
5.7-у=5\2
5.7-у=2.5
у=5.7-2.5
у=3.2

х+3.1\ 4\15:2\5+1\3=7
х+3.1\ 2\3+1\3=7
х+3.1\ 1=7
х+3.1=7
х=7-3.1
х=3.9

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