
5x=-30−x -6(x-2)=2x-17 -10x+3(7-2x)=13-2x


Ответы на вопрос

2. -6(x-2)=2x-17 = -6x^2+10x+17=0 = a-6, b=10, c=17 = 10^2-4(-6)•17=508
3. -10x+3(7-2)=13-2х = -10x +21 -6x =13 -2x = -16x +21 = 13 -2x = -16+2x = 13-21 = -14x = -8 = x= 4/7



To solve the given equations, let's start with the first equation:
5x = -30 - x
First, we can simplify the right side of the equation:
5x = -30 - x 5x + x = -30 6x = -30
Dividing both sides of the equation by 6, we get:
x = -30 / 6 x = -5
So the solution to the first equation is x = -5.
Moving on to the second equation:
-6(x - 2) = 2x - 17
First, distribute the -6 on the left side of the equation:
-6x + 12 = 2x - 17
Now, let's gather all the x terms on one side of the equation and the constant terms on the other side:
-6x - 2x = -17 - 12 -8x = -29
Dividing both sides of the equation by -8:
x = (-29) / (-8) x = 29/8
So the solution to the second equation is x = 29/8.
Finally, let's solve the third equation:
-10x + 3(7 - 2x) = 13 - 2x
First, distribute the 3 on the left side of the equation:
-10x + 21 - 6x = 13 - 2x
Now, let's gather all the x terms on one side of the equation and the constant terms on the other side:
-10x - 6x + 2x = 13 - 21 -14x = -8
Dividing both sides of the equation by -14:
x = (-8) / (-14) x = 4/7
So the solution to the third equation is x = 4/7.
To summarize, the solutions to the given equations are:
- x = -5
- x = 29/8
- x = 4/7


Похожие вопросы

Топ вопросов за вчера в категории Алгебра
Последние заданные вопросы в категории Алгебра
-
Математика
-
Литература
-
Алгебра
-
Русский язык
-
Геометрия
-
Английский язык
-
Химия
-
Физика
-
Биология
-
Другие предметы
-
История
-
Обществознание
-
Окружающий мир
-
География
-
Українська мова
-
Информатика
-
Українська література
-
Қазақ тiлi
-
Экономика
-
Музыка
-
Право
-
Беларуская мова
-
Французский язык
-
Немецкий язык
-
МХК
-
ОБЖ
-
Психология
-
Физкультура и спорт
-
Астрономия
-
Кыргыз тили
-
Оʻzbek tili