Resolver las siguientes ecuaciones} a 5x - 10 = - 15b 4x / 5 = - 8c x / 3 = - 30d 7x + 15 = 3x + 3e 2x + 7 = 3?

A)

5x - 10 = - 15

5x = - 15 + 10

5x = - 5

x = - 5 / 5

x = - 1

b)

4x / 5 = - 8

4x = - 8· 5

4x = - 40

x = - 40 / 4

x = - 10

c)

x / 3 = - 30

x = - 30· 3

x = - 90

d)

7x + 15 = 3x + 3

7x - 3x = 3 - 15

4x = - 12

x = - 12 / 4

x = - 3

e)

2x + 7 = 3

2x = 3 - 7

2x = - 4

x = - 4 / 2

x = - 2

¡Espero haberte ayudado, saludos!