Решите уравнение, используя основное свойство пропорции.
2.2/3 ..... 1.1/2
------- = -------
x+1/3...... x-1.1/8
2.2/3 ..... 1.1/2
------- = -------
x+1/3...... x-1.1/8
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2 2/3*(х-1 1/8)=1 1/2*(х+1/3)8/3*х-8/3*9/8=3/2 х+3/2*1/3
8/3х-3=3/2х+1/2
8/3х-3/2х=3 1/2
7/6 х=7/2
х=3