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egorka12345678
@egorka12345678
June 2022
1
17
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решите уравнения:1-а=130/300+90/300;2/18+c=1-12/18
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fknow3dd
1)
1-а =130/300+90/300
1-а=220/300
а=1-220/300
а=80/300=8/30=4/15
2)
2
+c = 1 -
12
18 18
с=18/18-12/18-2/18
с=4/18
с=2/9
0 votes
Thanks 2
egorka12345678
второе как решить
egorka12345678
2/18+c=1-12/18
fknow3dd
изменил решение так сойдет?
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Answers & Comments
1-а =130/300+90/300
1-а=220/300
а=1-220/300
а=80/300=8/30=4/15
2)
2 +c = 1 - 12
18 18
с=18/18-12/18-2/18
с=4/18
с=2/9