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keyko06
@keyko06
July 2022
1
5
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Уравнение!!!!! Решите, помогите!!!! Решите пять уравнений, срочно!!!!
Дроби обозначать так:5/7
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Flash3146
Y-5/7y=2/9
2/7y=2/9:2/7
y=7/9
2/15y+3/4=5/6
2/15y=20/24-18/24
2/15y=1/12:2/15
y=15/24
x/1/3=3/4/1/2
1/2x=3/4*1/3
1/2x=1/4:1/2
x=1/2
4/15/x=2/5/1
4/15*1=2/5x
-2/5x=-4/15:(-2/5)
x=2/3
7/8y=1 1/4:7/8
y=5/4*8/7=20/7=2 6/7
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Answers & Comments
2/7y=2/9:2/7
y=7/9
2/15y+3/4=5/6
2/15y=20/24-18/24
2/15y=1/12:2/15
y=15/24
x/1/3=3/4/1/2
1/2x=3/4*1/3
1/2x=1/4:1/2
x=1/2
4/15/x=2/5/1
4/15*1=2/5x
-2/5x=-4/15:(-2/5)
x=2/3
7/8y=1 1/4:7/8
y=5/4*8/7=20/7=2 6/7