Respuesta :
Answer:
Step-by-step explanation:
-10 + -10 = -20
so
10 - _ = -20
10 - 30 = -20
Remove parantheses:
-10 + -10 = 10
Simplify:
-10 - 10 = 10
Simplify:
-20 = 10
It's false so there is no solution
-10 + -10 = 10
Simplify:
-10 - 10 = 10
Simplify:
-20 = 10
It's false so there is no solution