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NIVEL I

(1) Si:
[tex]\[ a \ \textless \ em\ \textgreater \ b = 2a + b - 3 \][/tex]

Calcula: 12 8

A) 18
B) 24
C) 15
D) 29
E) 30

Sagot :

GinnyAnswer
Para resolver la operación [tex]\( 12 8 \)[/tex] usando la fórmula dada [tex]\( a b = 2a + b - 3 \)[/tex], seguimos los siguientes pasos:

1. Identificamos los valores de [tex]\( a \)[/tex] y [tex]\( b \)[/tex] en la fórmula. En este caso, [tex]\( a = 12 \)[/tex] y [tex]\( b = 8 \)[/tex].

2. Sustituimos los valores en la fórmula:
[tex]\[ 12 * 8 = 2(12) + 8 - 3 \][/tex]

3. Realizamos la multiplicación y sumas necesarias:
[tex]\[ 2(12) = 24 \][/tex]
[tex]\[ 24 + 8 = 32 \][/tex]

4. Finalmente, restamos 3:
[tex]\[ 32 - 3 = 29 \][/tex]

Por lo tanto, la respuesta correcta es:
D) 29
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