Answer :
Whet is Emma's age?
x is Tara's age now
Emma is 3x
3x + 7 = 2(x+7)
3x + 7 = 2x + 14
x = 7
Emma is 7 years old and tara 21
x is Tara's age now
Emma is 3x
3x + 7 = 2(x+7)
3x + 7 = 2x + 14
x = 7
Emma is 7 years old and tara 21