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Reziolvati va rog aceasta ecuatie dau coroona x-3\7x=2,8

Răspuns :

[tex] \frac{x-3}{7x}= 2.8 [/tex]
x - 3 = 7x · 2.8
x - 3 = 19.6x
x - 19.6x = 3
-18.6x = 3 / · -1
18.6x = - 3
x = 18.6 : (-3)
x = 6.2