Respuesta :

Answer:

3x+12

Solution,

[tex]3(x + 4) \\ = 3 \times x + 3 \times 4 \\ = 3x + 12[/tex]

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Answer:

3x+12

Step-by-step explanation:

=> 3(x+4)

Using distributive property of multiplication

=> (3*x)+(3*4)

=> 3x+12

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