Respuesta :

Answer:

[tex]x + 2.6 = 10.4 \\ x = 10.4 - 2.6 \\ x = 7.8[/tex]

Answer:

x = 7.8

Step-by-step explanation:

x + 2.6 = 10.4

- 2.6 -2.6

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x = 7.8