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Юлия1Бунакова
@Юлия1Бунакова
August 2022
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Arina122333
1)84,7:(х+2,7)=11
84,7/x+31.10/27=11
84,7х=11-31.10/27
84,7х=20.10/21
х=20.10/21:84,7
х=4300/17787
2)(8,65+3,45):х=-5
12,1:х=-5
х=12,1:(-5)
х=-2,42
3)(у+1,6)(-12)=76,8
-12у-19,2=76,8
-12у=76,8+19,2
-12у=96
у=-96:12
у=-8
4)(у-0,61)·27=-78,03
27у-16,47=-78,03
27у=-78,03+16,47
27у=-61,56
у=-61,56:27
у=-2,28
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Answers & Comments
84,7/x+31.10/27=11
84,7х=11-31.10/27
84,7х=20.10/21
х=20.10/21:84,7
х=4300/17787
2)(8,65+3,45):х=-5
12,1:х=-5
х=12,1:(-5)
х=-2,42
3)(у+1,6)(-12)=76,8
-12у-19,2=76,8
-12у=76,8+19,2
-12у=96
у=-96:12
у=-8
4)(у-0,61)·27=-78,03
27у-16,47=-78,03
27у=-78,03+16,47
27у=-61,56
у=-61,56:27
у=-2,28