Question

The value of |-69| + |-31| is

Answer 1

Hint: To compute the value of the given equation, we find out the ‘absolute value’ of the given numbers individually and sum them up.

Complete step by step answer:
Given Data,
|-69| + |-31|
So, by the definition of modulus we can say that any number inside the modulus function gives us the positive value of the number inside i.e. |x| = x, if x is positive and |x| = –x if x is negative.
So for |-69| we can write |-69|= -(-69) = 69
and |-31| = -(-31) = 31
Hence the given equation becomes,
|-69|+|-31| = 69 + 31 = 100.

Therefore the value of |-69| + |-31| is 100

Note: In order to solve this type of problems the key is to know the concept of modulus. Absolute value or modulus (denoted by the sign | |) of a real number x, denoted |x|, is the non-negative value of x without regard to its sign, i.e. |x| = x, if x is positive and |x| = –x if x is negative.