Question 341841
Let {{{m}}} = Mother's age now
Let {{{d}}} = Daughter's age now
given:
{{{m = 3d}}}
{{{m - 9 = 6*(d - 9)}}}
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{{{m - 9 = 6d - 54}}}
by substitution:
{{{3d - 9 = 6d - 54}}}
{{{3d = 54 - 9}}}
{{{3d = 45}}}
{{{d = 15}}}
{{{m = 3d}}}
{{{m = 45}}}
The Mother is 45 now and the daughter is 15 now