Explicación paso a paso:
= 3 ( 3u + 4t )
= 9u + 12t
= 2 ( u - 2t )
= 2u - 4t
= 9u + 2u + 12t - 4t
= 11u + 8t
R/ Opción a
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Verified answer
Explicación paso a paso:
= 3 ( 3u + 4t )
= 9u + 12t
= 2 ( u - 2t )
= 2u - 4t
= 9u + 2u + 12t - 4t
= 11u + 8t
R/ Opción a