Respuesta :

Answer:

x=-3

Step-by-step explanation:

Place like terms on the same side.

Keep in mind when a term is moved from its original position, it changes sign.

x+x=-3-3

2x=-6

x=-3

Answer:

x=-3

Step-by-step explanation:

X+3=-x-3

(add x to x)

2x+3=-3

(subtract 3 from -3)

2x=-6

(divide -6 by 2)

x=-3