Пусть Х- количество платформ, тогда
1,2Х- количество крытых вагонов, 3/5Х- количество цистерн
Составим уравнение:
Х+1,2Х+3/5Х=42
14/5Х=42
Х=15- платформ,
1,2*15=18- крытые вагоны
3/5*15=9 цистерны
uoiodyydosyooysypstoe a sept so I spent a lot of honor the second half of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the
uoiodyydosyooysypstoe a sept so I spent a lot of honor the second half of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the
uoiodyydosyooysypstoe a sept so I spent a lot of honor the second half of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the
uoiodyydosyooysypstoe a sept so I spent a lot of honor the second half of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the
uoiodyydosyooysypstoe a sept so I spent a lot of honor the second half of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the extension of the
э
1.5
Пошаговое объяснение:
2(3+4х)=18
6+8х=18
8х=18-6
8х=12
х=12:8
х=1.5
Сорри если неправильно
−
6
=
1
8
4{\color{#c92786}{-8x-6}}=184−8x−6=18
3
Вычтите числа
4
−
8
−
6
=
1
8
{\color{#c92786}{4}}-8x{\color{#c92786}{-6}}=184−8x−6=18
−
2
−
8
=
1
8
{\color{#c92786}{-2}}-8x=18−2−8x=18
4
Переставьте члены уравнения
−
2
−
8
=
1
8
{\color{#c92786}{-2-8x}}=18−2−8x=18
−
8
−
2
=
1
8
{\color{#c92786}{-8x-2}}=18−8x−2=18
5
Прибавьте
2
22
к обеим частям уравнения
−
8
−
2
=
1
8
-8x-2=18−8x−2=18
−
8
−
2
+
2
=
1
8
+
2
-8x-2+{\color{#c92786}{2}}=18+{\color{#c92786}{2}}−8x−2+2=18+2
6
Упростите
Сложите числа
Сложите числа
−
8
=
2
0
-8x=20−8x=20
7
Разделите обе части уравнения на один и тот же член
−
8
=
2
0
1,2х-крытых
3/5х=0,6-цистерны
х+1,2х+0,6х=42
2,8х=42
х=42/2,8=15-платформ
1,2*15=18-крытых
3/5*15=9-цистерны