Respuesta :

Answer:

Value of the given expression will be 19.

Step-by-step explanation:

We have to find the value of the given expression for a = 3, b = 5 and c = 12

Expression → |a + 1| + |b - c| - |-8|

We will use the property of absolute value,

|+a| = a

|-a| = a

By substituting the values of a, b and c in the given expression,

|a + 1| + |b - c| - |-8| = |3 + 1| + |5 - 12| - |-8|

                              = |4| + |-7| - |-8|

                              = 4 + 7 + 8

                              = 19

Therefore, value of the given expression will be 19.