X – 2/9 x = 28
7/9 x = 28
7x = 252
X = 252/7
X= 36
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Resolvemos :
x - 2/9 = 28
(9) x + ( - 2)
--------------- = 28
9
9x - 2 = 252
9x = 252 + 2
9x = 254
x = 254/9
Solución : El número es = 254/9
X – 2/9 x = 28
7/9 x = 28
7x = 252
X = 252/7
X= 36