Question

Ejercicio de matemática, solar X

Answer 1

Respuesta:

HOLIWI !!

1. 4 . ( x + 2 ) = - 12

4x + 8 = -12

4x = -12 - 8

4x = -20

x = 5

2. 5x + 6 = 3x + 4

5x - 3x = 4 - 6

2x = -2

x = -1

3. 2. ( x - 6 ) + 1 = 3

2x - 12 + 1 = 3

2x - 11 = 3

2x = 3 + 11

2x = 14

x = 7

4. x + 1 = 2x + 10

1 - 10 = 2x - x

-9 = x

5. 9x + 10 = 7x + 2

9x - 7x = 2 - 10

2x = -8

x = -4

6. 3. ( x + 4 ) -2 = 7

3x + 12 - 2 = 7

3x + 10 = 7

3x = 7 - 10

3x = -3

x = -1

7. 5. ( x - 3 ) = 15

5x - 15 = 15

5x = 15 + 15

5x = 30

x = 6

8. 5x + 1 = 3x - x - 8

5x + 1 = 2x - 8

5x - 2x = -8 - 1

3x = -9

x = -3

Espero haberte ayudado ✌✏