Respuesta :

Answer:

[tex]9 = x \\ 10 = x[/tex]

Step-by-step explanation:

27 = 7 + 2x

- 7 - 7

________

[tex]\frac{20}{2} = \frac{2x}{2} \\ \\ 10 = x[/tex]

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28 = 1 + 3x

- 1 - 1

________

[tex]\frac{27}{3} = \frac{3x}{3} \\ \\ 9 = x[/tex]

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