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Kandanan
@Kandanan
August 2022
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Решите уравнения.
180:(х-12)=20
(а+43)*9=747
(Решите все по порядку.)
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kornienko4
1) 180/х-12=20
(х-12)*20=180
20х-240=180
20х=420
х=420/20
х=21
----------------
2)(а+43)*9=747
9а+387=747
9а=360
а=40
3 votes
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Answers & Comments
(х-12)*20=180
20х-240=180
20х=420
х=420/20
х=21
----------------
2)(а+43)*9=747
9а+387=747
9а=360
а=40