# math

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Yuki's age is four years more than one-fourth of Xena's age. Xena's age is 21 years and 6 months more than seven-eighths of Yuki's age. How old are ena and Yuki?

• math -

y = x/4 + 4
x = 21.5 + 7y/8

x=32
y=12

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