Question

A) 14 – 5х = 2 – 9х b) 5 + 6(4х + 5) = 3х – 7 c) 5(4х + 7) – 3(8х – 3) = 7х d) 1,2(2x – 0,1) = 2,4x + 0,08 e) 8(x – 2) + (3x – 3) = 11x – 19 Помогите!!!! ​

Answer 1

Ответ: в последних 2-х, скорее всего нет решения

Пошаговое объяснение:

Answer 2

B)+14 – 5х = 2 – 9х + b

To solve this equation, we need to simplify and isolate the variable "х". Let's go step by step:

1. Combine like terms on each side of the equation: -5х + 9х + 14 = b + 2

2. Combine like terms: 4х + 14 = b + 2

3. Move the constant term to the other side of the equation by subtracting 2 from both sides: 4х + 14 - 2 = b

4. Simplify: 4х + 12 = b

Thus, the simplified equation is 4х + 12 = b.

C)+5 + 6(4х + 5) = 3х – 7 + c

To solve this equation, let's simplify and isolate the variable "х". Follow these steps:

1. Distribute the 6 to the terms inside the parentheses: 5 + 24х + 30 = 3х – 7 + c

2. Combine like terms on each side of the equation: 24х + 35 = 3х + c – 7

3. Combine like terms: 24х + 35 = 3х + c – 7

4. Move the constant term to the other side of the equation by subtracting 35 from both sides: 24х = 3х + c – 42

5. Simplify: 24х = 3х + c – 42

Thus, the simplified equation is 24х = 3х + c – 42.

D)+5(4х + 7) – 3(8х – 3) = 7х

To solve this equation, follow these steps:

1. Distribute the 5 and 3 to the terms inside the parentheses: 20х + 35 - 24х + 9 = 7х

2. Combine like terms on each side of the equation: 20х - 24х + 35 + 9 = 7х

3. Combine like terms: -4х + 44 = 7х

4. Move the constant term to the other side of the equation by subtracting 44 from both sides: -4х = 7х - 44

5. Simplify: -4х = 7х - 44

Thus, the simplified equation is -4х = 7х - 44.

E)+1.2(2x – 0.1) = 2.4x + 0.08

To solve this equation, let's simplify and isolate the variable "x". Follow these steps:

1. Distribute the 1.2 to the terms inside the parentheses: 2.4x - 0.12 = 2.4x + 0.08

2. Simplify: 2.4x - 0.12 = 2.4x + 0.08

3. Move the variable terms to one side of the equation by subtracting 2.4x from both sides: -0.12 = 0.08

4. This equation is inconsistent because -0.12 ≠ 0.08.

Thus, there is no solution to this equation.

F)+8(x – 2) + (3x – 3) = 11x – 19

To solve this equation, let's simplify and isolate the variable "x". Follow these steps:

1. Distribute the 8 to the terms inside the parentheses: 8x - 16 + 3x - 3 = 11x - 19

2. Combine like terms on each side of the equation: 11x - 19 = 11x - 19

3. Move the variable terms to one side of the equation by subtracting 11x from both sides: -19 = -19

4. This equation is consistent because -19 = -19.

Thus, the equation is true for all values of x.