Respuesta :

BiologiaMagister

Adding 4 plus x for example.


This is the equation:


18 = 2(4 + x)

18 = 8 + 2x

18 - 8 = 2x

10 = 2x

10 / 2 = x

5 = x


You can analyze the equation, and than see steps that where not included.



Hope it helped,


Happy homework/ study/ exam!

x= 5 is the anwer :) yay

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