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OpenStudy (anonymous):
Jeri is 3 years younger than Laura, whose age is x. How old is Jeri? x - 3 yrs old x + 3 yrs old 3x yrs old
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terenzreignz (terenzreignz):
Which do you think? Suppose Laura is 21, for instance, how old would Jeri be if he was three years younger?
OpenStudy (anonymous):
19
OpenStudy (anonymous):
no 18
terenzreignz (terenzreignz):
That's right... what did you do to 21 to get 18, you *subtracted 3* right? That should give you the right nudge :P
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