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Полина3962
@Полина3962
July 2022
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4,37+6,7х=7,75+9,3х
5/14у-12=4/21у-7,5
(второй пример там дроби)
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Answers & Comments
ALEX6301
4,37+6,7х=7,75+9,3х
6,7х-9,3х=7,75-4,37
-2,6х=3,38
х=3,38:(-2,6)
х=-1,3
-------------------------------------------------
5/14 у -12 = 4/21 у - 7,5
5/14y-4/21y=12-7,5
7/42y=4,5
y=45/10*6/1
y=27
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Полина3962
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Answers & Comments
6,7х-9,3х=7,75-4,37
-2,6х=3,38
х=3,38:(-2,6)
х=-1,3
-------------------------------------------------
5/14 у -12 = 4/21 у - 7,5
5/14y-4/21y=12-7,5
7/42y=4,5
y=45/10*6/1
y=27