2) 17(2-y)/3= 34/10
2-y= 3*2/10
2-y= 3/5
10-5y=3
7=5y
y= 1,4
4) 8,75:5= 19/7-y
1,75=19/7-y
12,25=19-7y
7y=6,75
y= 675/100:7
y= 27/4:7= 27/4*1/7= 27/28
Решение представлено на фото.
Ответ: 2)
4)
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2) 17(2-y)/3= 34/10
2-y= 3*2/10
2-y= 3/5
10-5y=3
7=5y
y= 1,4
4) 8,75:5= 19/7-y
1,75=19/7-y
12,25=19-7y
7y=6,75
y= 675/100:7
y= 27/4:7= 27/4*1/7= 27/28
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Решение представлено на фото.
Ответ: 2)
4)