Let the age of Giselle = x
Age of mother = x+24
After 6 years,
Age of Giselle = x + 6
Age of mother = x+24+6
= x + 30
[tex]4(x + 6) = x + 30 \\ 4x + 24 = x + 30 \\ 4x = x + 30 - 24 \\ 4x = x + 6 \\ 4x - x = 6 \\ 3x = 6 \\ x = \frac{6}{3} \\ \\ x = 2[/tex]
... Hope this will help....
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