Question

Ayuda !

es esto o reprueba matemáticas =/​

se lo pueden hacer con la comprobacion :'v

Answer 1

Respuesta:

Explicación paso a paso:

1)

2x + 7 = -3

2x = -3 - 7

2x = -10

x = -10/2

x = -5

2)

5x + - 7 = x - - 9

5x - 7 = x + 9

5x - x = 9 + 7

4x = 16

x = 16/4

x = 4

3)

-9 + 6x = 15 + 2x

6x - 2x = 15 + 9

4x = 24

x = 24/4

x = 6

4)

5x - 1 = 9

5x = 9 + 1

5x = 10

x = 10/5

x = 2

5)

4x - 2 = 8 + 3x

4x - 3x = 8 + 2

x = 10

6)

-6 + 2x - 5 = 5x + 10 - 3

-11 + 2x = 5x + 7

2x - 5x = 7 + 11

-3x = 18

x = 18/-3

x = -6

7)

8 + 12x = 15x - 19

12x - 15x = -19 - 8

-3x = -27

x = -27/-3

x = 9