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And I thought math was hard...
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Thank you soo much, this to me, is the hardest lesson ever
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Well... That's not how I got it..
from 1st info I got the following equation:
N = 4 + U
from 2nd info I got:
N - 2 = 5 ( U - 2 )
then I replaced the value of N from the earlier equation to be:
4 + U - 2 = 5U - 10
4 - 2 + 10 = 5U - U
U = 3 and N = 7
But you are great I love your videos....
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why cant you simply do it like this: nazrath = n umaima = u n= u + 4 n= 5u 5u = u+4 4u = 4 u = 1 so umaima was 1 year old 2 years ago..so nazrath was 5....which makes her 7 years old right now By the way...i'm not correcting you or anything like that ...you are honestly the best teacher in the world..!!!!!!!!!!!!!!!!!!!!!!!
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Nice video very productive :)
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thnx for the examples of age word problems
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@KuweEnma thnx so much
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wow thank dude YOU SAVED MY LIFE :D ur a great teacher...
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@kalsoom31 lets say:x= john's current age, and y=his son's current age x-3=24+(y-3)>>>bec. john 3yrs ago, is 24yrs older than his son, & his son is 24yrs younger than him 3yrs ago, x=5y>>>bec. john is currently 5 times older than his son.(multiply the first equation by -5 to cancel out 5y and y)>>>-5x+15=-120-(5y+15) and add it to the second equation, and ull get,>>>-4x+15=-120+15>>>solve for x>>>x=30=john's current age, substitute 30 to the second equation(30=5y) and you get that y=6 DONE =)
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can any1 solve this...3 years ago.john was 24 years older than his son.now,john is 5 times as old as his son.how old is john now



you're awesome Sal, hope you keep it up, :-D
balflear81 2 years ago 24
i disagree with derek. he is clear when he's talking but it's difficult to draw clearly on an online blackboard. i find it quite easy to follow and extremely helpful. that was funny though.."let me figure out how to turn this thing off"
randompurple35 3 years ago 15