Question

Розв'яжіть рiвняння: 1) 4x = 24 +x; 2) 8x-8=20-6x; 3) 9- 4x = 3x - 40; 4) 0,6x-5,4 = -0,8x+5,8; 5) (5x + 8) − (8x+14)=9; 6) 0,3 (8-3y) = 3,2-0,8(y-7); -) ² (x-1)= 3x + 3 / 1. 8) 7(4x-1)=6-2(3-14x).

Answer 1

Ответ:

4x-x=24

3x=24

x=8

это первый.

Пошаговое объяснение:

скачай приложение photomath на изи сделаешь

Answer 2

1. 4x = 24 + x

To solve this equation, we can start by isolating the variable x on one side of the equation:

4x - x = 24 3x = 24

Now, divide both sides of the equation by 3 to solve for x:

3x/3 = 24/3 x = 8

Therefore, the solution to the equation is x = 8.

2. 8x - 8 = 20 - 6x

Let's simplify the equation by combining like terms:

8x + 6x = 20 + 8 14x = 28

Divide both sides of the equation by 14:

14x/14 = 28/14 x = 2

So, the solution to the equation is x = 2.

3. 9 - 4x = 3x - 40

First, let's isolate the variable x by moving the terms containing x to one side of the equation:

9 + 40 = 3x + 4x 49 = 7x

Now, divide both sides of the equation by 7:

49/7 = 7x/7 7 = x

Therefore, the solution to the equation is x = 7.

4. 0.6x - 5.4 = -0.8x + 5.8

Let's simplify the equation by combining like terms:

0.6x + 0.8x = 5.8 + 5.4 1.4x = 11.2

Divide both sides of the equation by 1.4:

1.4x/1.4 = 11.2/1.4 x = 8

Hence, the solution to the equation is x = 8.

5. (5x + 8) - (8x + 14) = 9

To solve this equation, let's simplify the expression within the parentheses:

5x + 8 - 8x - 14 = 9

Now, combine like terms:

-3x - 6 = 9

Add 6 to both sides of the equation:

-3x = 9 + 6 -3x = 15

Divide both sides of the equation by -3:

-3x/-3 = 15/-3 x = -5

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

6. 0.3(8 - 3y) = 3.2 - 0.8(y - 7)

Let's simplify the equation by distributing and combining like terms:

2.4 - 0.9y = 3.2 - 0.8y + 5.6

Combine the y terms:

2.4 + 0.9y = 3.2 + 5.6 - 0.8y

Combine the constant terms:

2.4 + 0.9y = 8.8 - 0.8y

Add 0.8y to both sides and subtract 2.4 from both sides:

0.9y + 0.8y = 8.8 - 2.4

1.7y = 6.4

Divide both sides of the equation by 1.7:

y = 6.4/1.7

y ≈ 3.76

Therefore, the solution to the equation is y ≈ 3.76.

7. (x - 1)² = (3x + 3) / 1

To solve this equation, let's