Respuesta :

Step-by-step explanation:

x + 0.15x = 3.45

1.15 x = 3.45

x= 3.45/1.15

x=3

[tex]x + 0.15x = 3.45 \\ = > 1.15x = 3.45 \\ = > x = \frac{3.45}{1.15} = \frac{345}{115} \\ = > x = 3[/tex]

Your answer is 3.

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