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
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
2. Верна ли пропорция?
3. Решите уравнение: 39,1 : x = 18,63 : 40,5
Используем свойство пропорции:
18,63х=39,1×40,5
18,63х=1583,55
х=1583,55:18,63
х=85
Задание 1. Составьте из чисел 1,5; 4,9; 2,1 и 3,5 верную пропорцию
2. Верна ли пропорция?
3,5×2,1=1,5×4,9
7,35 = 7,35 - верна.
3. Решите уравнение:
15,48 : 64,8 = 55,9 : x
15,48х=64,8×55,9
15,48х=3622,32
х=3622,32:15,48
х= 234