1.

John is 21 years older than julie. 6 years ago he was 4 times older than julie. how old is julie.

Answer»

Answer:

3X + 3 = Y

if X + Y = 27

then x + 3X + 3 = 27

4X + 3 = 27

4X = 27 - 3

4X = 24

X = 6 (Kevin)

and y = 6 X 3 + 3 = 21 (Julie)



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