Calcula los siguientes ejercicios escribiendo el desarrollo paso a paso de la manera mas ordenada posible a. 6 + - 7 - ( - 8) + 4 - 2 = b. 46 - [38 - ( - 2)] + - 9 + (42 - 18 + - 15) - ( - 7)] =.
En resumen
6 + - 7 - ( - 8) + 4 - 2 6 - 7 + 8 + 4 - 2 6 + 8 + 4 - 7 - 2 18 - 9 9 46 - [38 - ( - 2)] + [ - 9 + (42 - 18 + - 15) - ( - 7)] 46 - [38 + 2] + [ - 9 + (24 - 15) + 7] 46 - [40] + [ - 9 + (9) + 7] 46 - 40 + [ - 9 + 9 + 7] 6 - [ + 7] 6 - 7 - 1.
6 + - 7 - ( - 8) + 4 - 2
6 - 7 + 8 + 4 - 2
6 + 8 + 4 - 7 - 2
18 - 9
9
46 - [38 - ( - 2)] + [ - 9 + (42 - 18 + - 15) - ( - 7)]
46 - [38 + 2] + [ - 9 + (24 - 15) + 7]
46 - [40] + [ - 9 + (9) + 7]
46 - 40 + [ - 9 + 9 + 7]
6 - [ + 7]
6 - 7 - 1.
16) a² + 1 - b(a² + 1) (a² + 1)(1 + b) 17) 1 - x + 2a(1 - x) (1 - x) (1 + 2a) 18) - m - n + x(m + n) - (m + n) + x(m + n) (m + n) (x - 1) 19) a³(a - b + 1) - b²(a - b + 1) (a - b + 1) (a³ - b²) 20) x(2a + b + c) - 2a -…
Q cosa escribo q resolucion.
4 / a + 5 / b = 9 4 / a = 9 - 5 / b 4 = a(9 - 5 / b) a = 4 / (9 - 5 / b) 7 / a + 8 / b = 15 7 / a = 15 - 8 / b 7 = a(15 - 8 / b) a = 7 / (15 - 8 / b) 4 / (9 - 5 / b) = 7 / (15 - 8 / b) 4 * (15 - 8 / b) = 7 * (9 - 5 / b)…