SOLUTION: The age of a girl in months is equal to the age of her grandmother in years. If the difference between their ages is 66 years, find their ages

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Question 1085968: The age of a girl in months is equal to the age of her grandmother in years. If the difference between their ages is 66 years, find their ages
Answer by MathLover1(20850) About Me  (Show Source):
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let age of a girl be x and the age of her grandmother y
if the age of a girl in months is equal to the age of her grandmother in years,
12x=y.....eq.1
If the difference between their ages is 66 years,
y-x=66
y=66%2Bx.....eq.2
from eq.1 and eq.2 we have
12x=66%2Bx
12x-x=66
11x=66
x=66%2F11
x=6->The age of a girl
y=66%2Bx
y=66%2B6
y=72->the age of her grandmother
12x=12%2A6=72->The age of a girl in months which is equal to the age of her grandmother in years