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моёсолнышко1
@моёсолнышко1
August 2022
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решите эти 6 уравнений пож-ста
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ТатьянаПак200505
Я не знаю сама не решила.Кстати у меня книга точно такая же
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litfester
1) 1 1/3x + 0,2 = 1
1 1/3x = 0,8
x= 4/5 : 4/3
x= 3/5
2) 3/25y - 1,2 = 0,6
3/25y = 1,8
y= 1 4/5: 3/25
y=15
3) 1,32x + 4 = 10 3/5
1,32x = 6 3/5
1 8/25x = 33/5
x= 33/5 : 33/25
x=5
4) 7/12x - 0,5 = 1,25
7/12x = 1,75
7/12x = 7/4
x= 7/4 : 7/12
x=3
5) 5/6x - 4,15= 2,1
5/6x = 6,25
5/6x= 25/4
x= 25/4 : 5/6
x= 7,5
6) 2,7 + 2/9y = 4,3
2/9y = 1,6
2/9y = 8/5
y = 8/5 : 2/9
y= 7 1/5
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Answers & Comments
1 1/3x = 0,8
x= 4/5 : 4/3
x= 3/5
2) 3/25y - 1,2 = 0,6
3/25y = 1,8
y= 1 4/5: 3/25
y=15
3) 1,32x + 4 = 10 3/5
1,32x = 6 3/5
1 8/25x = 33/5
x= 33/5 : 33/25
x=5
4) 7/12x - 0,5 = 1,25
7/12x = 1,75
7/12x = 7/4
x= 7/4 : 7/12
x=3
5) 5/6x - 4,15= 2,1
5/6x = 6,25
5/6x= 25/4
x= 25/4 : 5/6
x= 7,5
6) 2,7 + 2/9y = 4,3
2/9y = 1,6
2/9y = 8/5
y = 8/5 : 2/9
y= 7 1/5