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udodenko
@udodenko
July 2022
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а)-8x+15=-4x+60
б)5/6x+7=5/9x-5
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carolila30
A)-8x+15=-4x+60
-4x=45
x=11,25
насчет б не уверена
б)
+7=
-5
+
=
-
=
умножаем первую часть на 9,а вторую на 6
=
умножаем все на 54 x
45+270x=30-270x
540x=-15
x=
0 votes
Thanks 1
Лев4чик
-8х+4х=60-15
-4х=45
х=45/-4
x=-11.25
5+7-5+5=9х+6х
12=15х
х=15/12
х=1,25
2 votes
Thanks 3
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Answers & Comments
-4x=45
x=11,25
насчет б не уверена
б)
умножаем первую часть на 9,а вторую на 6
умножаем все на 54 x
45+270x=30-270x
540x=-15
x=
-4х=45
х=45/-4
x=-11.25
5+7-5+5=9х+6х
12=15х
х=15/12
х=1,25