lai16kk77
12.09.2021 •
Mathematics
Please help- im so bad at this TvT
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Answers on questions: Mathematics
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Ответ:
Step-by-step explanation:
10)-2
11)-11
12)-9
13)75/-25=-3
14)-30/-15=2
15)-20/5-5
=-4-5
=-9
16)90/-45=-2
17)-45/-15=2
18)-15 times 5/25
=-75/25
=-3
19)-15-(-45)/10
=-15+45/10
=30/10
=3
20)5-5/-1
=0/-1
=0
21)-(-15)/5
=15/5
=3
22)-45-15/-15
=-60/15
=-4
23)-15+(-45)/-5
=-15-45/-5
=-60/-5
=12
Have a nice day! :)
-Vana
Ответ:
23x - 15x - x = 1
23x - 16x = 1
7x = 1
x = 1/7