Question 951258
Joan is y years old. Her father is 4 times as old as she is and 28 years older than her brother. 
A. Find, in terms of y, the age of Joan's brother.
B. If y=12, how old is her brother?
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y=Joan's age
4y=Father's age
4y-28=brother's age
If y=12, how old is her brother? 20