Respuesta :
Answer:
78
Step-by-step explanation:
[tex]400-224=156\\156/2=78[/tex]
Mrs. Kim is 78 years old
Step-by-step explanation:
400-2x=244
400-244=156
156=2x
x=78
Answer:
78
Step-by-step explanation:
[tex]400-224=156\\156/2=78[/tex]
Mrs. Kim is 78 years old
Step-by-step explanation:
400-2x=244
400-244=156
156=2x
x=78