Question 347725
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Elaine sold 3 times as many magazines as Ron did. Ron sold 16 fewer magazines than Elaine did. How many magazines did each sell? 


Let E = Elaine


Let R = Ron


E = 3R


R = E - 16


E = 3(E - 16)


E = 3E - 48


E - 3E = -48


-2E = -48


E = -48/-2


E = 24


Elaine sold 24 magazines.


To find how Ron sold, plug 24 for E in either equation listed above and solve for R.


I will use R = E - 16.


R = 24 - 16


R = 8


Ron sold 8 magazines.