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Sophie is 3.5 years younger than her brother. She knows that when she is b years old, her brother is b+3.5 years old. Right now, Sophie is 11.5 years old.
How old is Sophie's brother?
Write your answer as a whole number or decimal


Sagot :

Answer:

Sophie's brother is 9 exactly

Step-by-step explanation:

the answer is 15, cause if you add 3.5 and 11.5 that equals 15