Respuesta :
Answer:
Step-by-step explanation:
2 Simplify -3-21−3−21 to -24−24.
-24+18
−24+18
3 Simplify.
-6
−6
Answer: -6
Step-to-step explanation:
-3+(-21)+18
-24+18
-6
Step-to-step explanation:
-3+(-21)+18
-24+18
-6