Question

72 EJERCICIOS Cuál es el valor del entero x tal que: a) 18+ x = 13 b) 87+ x = -35 c) (-32) + x = 23 d) x + (-127) = -135 e) x + 71 = 27 f) (-92) + x = -72 g) x + (-5) = 5 h) x + (-17) = 0​

Answer 1

$a)18 + x = 13 \\ x = 13 - 18 \\ x = - 5$

$b)87 + x = - 35 \\ x = - 35 - 87 \\ x = - 122$

$c) - 32 + x = 23 \\ x = 23 + 32 \\ x = 55$

$d)x + ( - 127) = - 135 \\ x - 127 = - 135 \\ x = - 135 + 127 \\ x = - 8$

$e)x + 71 = 27 \\ x = 27 - 71 \\ x = - 44$

$f) - 92 + x = - 72 \\ x = - 72 + 92 \\ x = 20$

$g)x + ( - 5) = 5 \\ x - 5 = 5 \\ x = 5 + 5 \\ x = 10$

$h)x + ( - 17) = 0 \\ x - 17 = 0 \\ x = 0 + 17 \\ x = 17$