Word problem help plz

what is an "inverted age"?

Aldo ur english beat me but anything i guess inverted means inverse
such that let father=f and son=s
let the age of father be=10f+s
inverted age now will be=10s+f
99-(10f+s)=age of son
inverted age now will be=90-10s)+(9-s)...because there sre still d same i jus do dat to help we my addition
now
we add
10f+s+90-10s+9-f=72
9f-9s=72
divide tru by 9
f-s=3.........(a)
and
10s+y-(90-10y)-(9-s)=22
10s+f-90+10f-9+s=22
11s+11f=121
s+f=11.......(b)
bring a and b togeda
f-s=3
s+f=11
rearrange
-s+f=3
s+f=11
2f=14
f=7
puttin 7 into a
s+7=11
s=4
so father is =10y+4
10*7+4=74
AND SON
99-20-4=25
check since fs=74 sf=47 son is either inverted 52
47+25=72
72=72
74-52=22
22=2

am i correct sir steve

Aldo d beat me but anything i guess inverted means inverse
such that let father=f and son=s
let the age of father be=10f+s
inverted age now will be=10s+f
99-(10f+s)=age of son
inverted age now will be=90-10s)+(9-s)...because there sre still d same i jus do dat to help we my addition
now
we add
10f+s+90-10s+9-f=72
9f-9s=72
divide tru by 9
f-s=3.........(a)
and
10s+y-(90-10y)-(9-s)=22
10s+f-90+10f-9+s=22
11s+11f=121
s+f=11.......(b)
bring a and b togeda
f-s=3
s+f=11
rearrange
-s+f=3
s+f=11
2f=14
f=7
puttin 7 into a
s+7=11
s=4
so father is =10y+4
10*7+4=74
AND SON
99-20-4=25
check since fs=74 sf=47 son is either inverted 52
47+25=72
72=72
74-52=22
22=2

am i correct sir steve

I guess by inverted you mean the digits are switched.

So, if the father's age is xy and the son's age is ab, then we have

10x+y+10a+b=99
10a+b+10y+x=72
10x+y-(10b+a)=28

http://www.wolframalpha.com/input/?i=solve+10x%2By%2B10a%2Bb%3D99%2C+10a%2Bb%2B10y%2Bx%3D72%2C+10x%2By-%2810b%2Ba%29%3D28

If you look at the solution (undetermined, since we have only 3 equations and 4 unknowns), you see that

x=y+3

Using that, the choices for the father's age are
41,52,63,74,85

But none of those works:
41+58=99
58+14=72
41-85=-44

52+47=99
47+25=72
52-74=-22

63+36=99
36+36=72
63-63=0

74+25=99
25+47=72
74-52=22

85+14=99
14+58=72
58-41=17

Maybe you can work it out...

oops. 85-41=44
Still no joy.