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is it some kind of linear equation problem?
example a man is 3x as old as his son.4years ago he was 4x as old as his son. how old is his son?
you could start by changing some of the words to letters [a man is 3x as old as his son] becomes m = 3s
see, link the current with the old.
is it really 3x+4=4x? if thats the equation so x=4 and if son is 4years old then 4years ago he was 0
i guess the right equation is 3x-4 = 4(x-4) while x is the age of son. man is 36 4years ago 32 son is 12 4years ago 8
if x=4 then its the son's age. Man's age is 3x, which is 3*4=12 But let me check... wait....
ya this should be the answer.....
In your equation how did you put4(x-4) ? Just tell me why
3x-4 is the age of man 4years ago 4(x-4) 4years ago the age of son is 4x as the man
-4 since its past
O ho.... see....3x is the man's age. 4x is the age 4 years before. 3x-4 means the age minus 4 years which gives the previous age which is 4x so, 3x-4=4x.. when you find x, you get the son's age... Got it @darkmaker ?
3x-4=4x -4=4x-3x -4=x since there is no negative age x is equal to 4 if x=4 son is 4 4years ago 0 man is 12 4years ago 8 equation seems wrong age of man is 4x as age of son 4years ago the age of son must be reduced by 4 also since it was 4years ago anyway I browse the last page of the book and there is the correct answer there son is 12 years old =)
okay good for you then... hmmm let me think where I made the mistake. Thanks for the answer anyways.......
I got it... You are right......... Good job! @darkmaker
ill guess im gonna ask my professor regarding my question here. thanks anyway =)