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NasyaEvelens
@NasyaEvelens
August 2022
2
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Решите уравнения:
1. 8х-3х+43=108
2.9у+2у-19=102
3.14х-7х-42=21
4.5у+у+19=139
5.15х-6х-3х=21,6
6.30у-9у-12у=3,42
7.5х+7х-8х=0,48
8.8у-3у+7у=156
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nikaaaaaaaahxjsns
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3 votes
Thanks 5
Nastyabolistovska
1. 8х-3х+43=108
8х-3х=108-43
5х=65
х=65:5
х=13
2.9у+2у-19=102
9у+2у=102+19
11у=121
у=121:11
у=11
3.14х-7х-42=21
14х-7х=21+42
7х=63
х=63:7
х=9
4.5у+у+19=139
5у+у=139-19
6у=120
у=120:6
у=20
5.15х-6х-3х=21,6
6х=21,6
х=21,6:6
х=3,6
6.30у-9у-12у=3,42
9у=3,42
у=3,42:9
у=0,38
7.5х+7х-8х=0,48
4х=0,48
х=0,48:4
х=0,12
8.8у-3у+7у=156
12у=156
у=156:12
у=13
5 votes
Thanks 6
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Answers & Comments
8х-3х=108-43
5х=65
х=65:5
х=13
2.9у+2у-19=102
9у+2у=102+19
11у=121
у=121:11
у=11
3.14х-7х-42=21
14х-7х=21+42
7х=63
х=63:7
х=9
4.5у+у+19=139
5у+у=139-19
6у=120
у=120:6
у=20
5.15х-6х-3х=21,6
6х=21,6
х=21,6:6
х=3,6
6.30у-9у-12у=3,42
9у=3,42
у=3,42:9
у=0,38
7.5х+7х-8х=0,48
4х=0,48
х=0,48:4
х=0,12
8.8у-3у+7у=156
12у=156
у=156:12
у=13