Question 709385
w age of woman.
d age of daughter.


Now, {{{w=3d}}}
In eleven more years, {{{w+11=2(d+11)}}}
Find daugher's present age.


Substitute w from the first equation into the second equation.
()+11=2(d+11)
(3d)+11=2(d+11)
3d+11=2d+22
3d-2d+11=22
3d-2d=22-11
d=11, daughter is eleven years old now.