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2014-04-26T12:31:53+03:00
X/y=3/4
x=3y/4
xy=108
3y/4 *y=108
3y²/4=108
y²=4*108/3
y²=4*36
y=√4*36
y=√144
y=12
x=3*12/4=
x=3*3=
x=9