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Presunta 2: (4 puntos) {:[" Halle: "quad" Y "-7.4-4B-12],[S=A-5{7-4[6-(7-18+6-8)+5]}],[B=(14-9+3+4+5)(18+(-6)(3)-1)+(5-8)(-4)]:}

Presunta 22:\newline(44 puntos)\newline Halle:  Y −7.4−4B−12S=A−5{7−4[6−(7−18+6−8)+5]}B=(14−9+3+4+5)(18+(−6)(3)−1)+(5−8)(−4) \begin{array}{l} \text { Halle: } \quad \text { Y }-7.4-4 B-12 \\ S=A-5\{7-4[6-(7-18+6-8)+5]\} \\ B=(14-9+3+4+5)(18+(-6)(3)-1)+(5-8)(-4) \end{array}

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Q. Presunta 22:\newline(44 puntos)\newline Halle:  Y −7.4−4B−12S=A−5{7−4[6−(7−18+6−8)+5]}B=(14−9+3+4+5)(18+(−6)(3)−1)+(5−8)(−4) \begin{array}{l} \text { Halle: } \quad \text { Y }-7.4-4 B-12 \\ S=A-5\{7-4[6-(7-18+6-8)+5]\} \\ B=(14-9+3+4+5)(18+(-6)(3)-1)+(5-8)(-4) \end{array}
  1. Calculate B: Calculate B using the expression B=(14−9+3+4+5)(18+(−6)(3)−1)+(5−8)(−4)B = (14 - 9 + 3 + 4 + 5)(18 + (-6)(3) - 1) + (5 - 8)(-4).B=(14−9+3+4+5)(18−18−1)+(−3)(−4)B = (14 - 9 + 3 + 4 + 5)(18 - 18 - 1) + (-3)(-4)B=(17)(−1)+12B = (17)(-1) + 12B=−17+12B = -17 + 12B=−5B = -5
  2. Calculate S: Calculate S using the expression S = A - 5\{7 - 4[6 - (7 - 18 + 6 - 8) + 5]}. First, simplify the innermost parentheses: (7−18+6−8)(7 - 18 + 6 - 8). S = A - 5\{7 - 4[6 - (-5) + 5]} S = A - 5\{7 - 4[6 + 5 + 5]} S = A - 5\{7 - 4[16]} S = A - 5\{7 - 64} S = A - 5\{-57} S=A+285S = A + 285
  3. Calculate Y: Now, calculate Y using the expression Y=−7.4−4B−12Y = -7.4 - 4B - 12 and the value of B we found.Y=−7.4−4(−5)−12Y = -7.4 - 4(-5) - 12Y=−7.4+20−12Y = -7.4 + 20 - 12Y=0.6Y = 0.6

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