Question

7 (х-1) -3 (2х+1) = -х -15​

Answer 1

Ответ:

7х-7-6х-3=-х-15

х-10=-х-15

х+х=-15+10

2х=-5

х=-5/2(минус у всей дроби)

х=-2,5

Answer 2

Ответ:

7x-7-6x-3=-x-15

7x-6x+x=-15+3+7

2x=-5

x=-5:2

x=-2,5 может быть вы записаваете 2

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5

Answer 3

To solve the equation $7(x-1) - 3(2x+1) = -x - 15$, follow these steps:

1. Distribute the constants and variables inside the parentheses: $7x - 7 - 6x - 3 = -x - 15$.

2. Combine like terms on both sides of the equation: $7x - 6x - 7 - 3 = -x - 15$, $x - 10 = -x - 15$.

3. Add $x$ to both sides of the equation to get the $x$ terms on one side: $x + x - 10 = -x + x - 15$, $2x - 10 = -15$.

4. Add 10 to both sides of the equation: $2x - 10 + 10 = -15 + 10$, $2x = -5$.

5. Divide both sides of the equation by 2: $\frac{2x}{2} = \frac{-5}{2}$, $x = -\frac{5}{2}$.

So, the solution to the equation is $x = -\frac{5}{2}$.