Respuesta :

Answer:

x=6

Step-by-step explanation:

The two triangles are similar

so the equation is

[tex] \frac{12}{18} = \frac{4}{x} [/tex]

[tex]12x = 72[/tex]

[tex]x = \frac{72}{12} [/tex]

[tex]x = 6[/tex]
12x=17 hope it help ✌

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