SOLUTION: A mother's age is 4 times her daughter's age. 3 years ago the sum of their ages was 39 how old are they now?

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Question 1059386: A mother's age is 4 times her daughter's age. 3 years ago the sum of their ages was 39 how old are they now?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
M=4D
.
.
.
%28M-3%29%2B%28D-3%29=39
M%2BD=45
Substituting,
4D%2BD=45
5D=45
D=9
and
M=4%289%29
M=36