Respuesta :

rocketlauncherdude28

Answer:

-18

Step-by-step explanation:

By opposite, I believe this is talking about the sign. Note that taking an absolute value of a number always results in a positive number.

|-18| = 18

tingsung

Answer:

-18, 18

Step-by-step explanation:

Opposite means negative becomes positive, and positive becomes negative. Absolute value is distance from zero. It is 18 away from zero. Opposite of 18 is -18.