Question

Решите уравнения: 1) - х +6 =11 2) 5х + 15 = х - 1 3) - 6х + 2 = - х + 22

Answer 1

Ответ:

1. - 5

Пошаговое объяснение:

1. -x=5

x=-5

2. 2.5х-х=-1-15

4х=-16  

х=-4

3. -6х+2=-х+22  

-7х= 20  

-х=20:7

-х= 2 u 6/7

х= -2 u 6/7

Answer 2

1. -x + 6 = 11

To solve this equation, we need to isolate the variable x. We can do that by performing inverse operations to both sides of the equation. Let's begin:

-x + 6 - 6 = 11 - 6 (subtract 6 from both sides) -x = 5 (simplify) x = -5 (multiply both sides by -1)

Therefore, the solution to the equation is x = -5.

2. 5x + 15 = x - 1

To solve this equation, we'll again isolate the variable x. Let's proceed:

5x - x = -1 - 15 (subtract x from both sides and simplify) 4x = -16 (simplify) x = -16/4 (divide both sides by 4) x = -4 (simplify)

So, the solution to the equation is x = -4.

3. -6x + 2 = -x + 22

We'll apply the same process of isolating x to solve this equation:

-6x + x = 22 - 2 (add x to both sides and simplify) -5x = 20 (simplify) x = 20/-5 (divide both sides by -5) x = -4 (simplify)

Hence, the solution to the equation is x = -4.