Respuesta:
10
[tex]2x + 10 = 30 \\ 2x = 30 - 10 \\ 2x = 20 \\ x = \frac{20}{2} \\ x = 10[/tex]
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Respuesta:
10
[tex]2x + 10 = 30 \\ 2x = 30 - 10 \\ 2x = 20 \\ x = \frac{20}{2} \\ x = 10[/tex]