andichavez307
andichavez307
23-09-2020
Mathematics
contestada
-9 + x =12
what is x?
Respuesta :
kimanijcoleman
kimanijcoleman
23-09-2020
Answer:
x = 21
Step-by-step explanation:
-9 + x = 12
+9 +9
x=21
Answer Link
haliemarie63
haliemarie63
23-09-2020
x is 21 because we need at least 9 to get it back to zero because it’s a positive number then add 12 because that the number you need to get to and 21-9= 12
Answer Link
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