Question

R) 5 x – 13 = 3 X - 9 A) (5 x-6) -(4 x - 8) = 2e) 6 ( X – 1,5) – 4 x= 2>K) 0,9 x + 12 = 33) 7-2 ( x + 5) = 13 - 6 xK) 4 (x -0,6) - 2 (x +0,2)= -2,6JI) 5 ( x - 2) = 3 (5x – 13)​

Answer 1

Ответ:

решение на фотографии

Answer 2

Ответ:

r 2

a 0

e 5,5

>k -10

з 4

k 0,1

Ji 29

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10

Answer 3

To solve the given equations, let's go through them one by one:

R) 5x - 13 = 3x - 9

To solve for x, we want to isolate the x term on one side of the equation.

Subtract 3x from both sides:

5x - 3x - 13 = 3x - 3x - 9

2x - 13 = -9

Add 13 to both sides:

2x - 13 + 13 = -9 + 13

2x = 4

Divide both sides by 2:

2x/2 = 4/2

x = 2

So, the solution for R) is x = 2.

A) (5x-6) - (4x - 8) = 2

Let's simplify the equation by removing the parentheses:

5x - 6 - 4x + 8 = 2

Combine like terms:

(5x - 4x) + (-6 + 8) = 2

x + 2 = 2

Subtract 2 from both sides:

x + 2 - 2 = 2 - 2

x = 0

So, the solution for A) is x = 0.

e) 6(x - 1.5) - 4x = 2

Let's distribute the 6:

6x - 9 - 4x = 2

Combine like terms:

(6x - 4x) - 9 = 2

2x - 9 = 2

Add 9 to both sides:

2x - 9 + 9 = 2 + 9

2x = 11

Divide both sides by 2:

2x/2 = 11/2

x = 5.5

So, the solution for e) is x = 5.5.

K) 0.9x + 12 = 33

Subtract 12 from both sides:

0.9x + 12 - 12 = 33 - 12

0.9x = 21

Divide both sides by 0.9:

0.9x/0.9 = 21/0.9

x = 23.3333... (repeating decimal)

So, the solution for K) is approximately x = 23.333.

3. 7 - 2(x + 5) = 13 - 6x

Distribute the -2:

7 - 2x - 10 = 13 - 6x

Combine like terms:

7 - 10 - 2x = 13 - 6x

-3 - 2x = 13 - 6x

Add 6x to both sides:

-3 - 2x + 6x = 13 - 6x + 6x

4x - 3 = 13

Add 3 to both sides:

4x - 3 + 3 = 13 + 3

4x = 16

Divide both sides by 4:

4x/4 = 16/4

x = 4

So, the solution for 3) is x = 4.

K) 4(x - 0.6) - 2(x + 0.2) = -2.6

Let's distribute the 4 and -2:

4x - 2.4 - 2x - 0.4 = -2.6

Combine like terms:

(4x - 2x) - (2.4 + 0