Respuesta :

Answer:

X= -4

Step-by-step explanation:

First you subtract both sides by 3. You will get:

5x=-20

then you divide both sides by 5

-20/5=-4 so

x=-4

Answer:

x=-2

Step-by-step explanation:

3+5x=-7

-3+5x=-7-3

5x=-10

5/x=-10/5

x=-2