Question

Va rog rezolvareaaaa​

Answer 1

Explicație pas cu pas:

1. 2x - 3 = 9

2x = 9 + 3

2x = 12

x = 6

2. 2 ( x + 1 ) - 3 = 9

2x + 2 - 3 = 9

2x - 1 = 9

2x = 9 + 1

2x = 10

x = 5

3. 3 - ( x - 1 ) * 2 = 3

- ( 2x - 2 ) = 0

- 2x + 2 = 0

- 2x = - 2

x = 1

4. x/2 - 3 = 9/2

x - 6 = 9

x = 9 + 6

x = 15

5. 2 + ( x - 7 ) * 3/2 = 9

2 + 3/2x - 21/2 = 9

- 17/2 + 3/2x = 9

- 17 + 3x = 18

3x = 18 + 17

3x = 35

x = 35/3

6. 2³ * x = 16

8x = 16

x = 2

8. ( 1/8 - x ) x + 3 = 10

1/4 - 2x + 3 = 10

13/4 - 2x = 10

- 2x = 10 - 13/4

- 2x = 27/4

x = - 27/8