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Anastaisha14
@Anastaisha14
March 2022
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Люди,хелп)..............
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artemkarmanov
А) У=17-5Х
У=3Х-7
17-5Х=3Х-7
8Х=24
Х=3
У=3*3-7=2
б)3х=6+8у
3х=21-7у
6+8у=21-7у
15у=15
у=1
х=(6+8)/3=14/3
в)у=(24-4х)/3
у=(5х+13)/7
7(24-4х)=3(5х+13)
168-28х=15х+39
43х=129
х=3
у=(5*3+13)/7=28/7=4
г)5у=11-х
5у=3х-13
11-х=3х-13
4х=24
х=6
у=(11-6)/5=1
Получите распишитесь)
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Answers & Comments
У=3Х-7
17-5Х=3Х-7
8Х=24
Х=3
У=3*3-7=2
б)3х=6+8у
3х=21-7у
6+8у=21-7у
15у=15
у=1
х=(6+8)/3=14/3
в)у=(24-4х)/3
у=(5х+13)/7
7(24-4х)=3(5х+13)
168-28х=15х+39
43х=129
х=3
у=(5*3+13)/7=28/7=4
г)5у=11-х
5у=3х-13
11-х=3х-13
4х=24
х=6
у=(11-6)/5=1
Получите распишитесь)