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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