Jacob is now 13 years younger than Michael. If 9 years from now Michael will be twice as old as Jacob, how old will Jacob be in 4 years?  Options:
A) 8
B) 7
C) 15
D) 21
E) 25
Jacob=x years, Michael=x+13 years   9 years from now,   2(x+9)=x+22   2x+18=x+22   x=4   x+4=8 years   8nswer 8
<result>A</result>
Jacob is now 13 years younger than Michael. If 9 years from now Michael will be twice as old as Jacob, how old will Jacob be in 4 years?