Треугольники подобны.
(y-1)/y=4/5,
5(y-1)=4y,
5y-5=4y,
y=5,
x/(2x-3)=4/5,
5x=4(2x-3),
5x=8x-12,
-3x=-12,
x=4.
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Треугольники подобны.
(y-1)/y=4/5,
5(y-1)=4y,
5y-5=4y,
y=5,
x/(2x-3)=4/5,
5x=4(2x-3),
5x=8x-12,
-3x=-12,
x=4.