The difference between the inverse of a rational number and its absolute value is There are still a lot of references that can't be written. Somebody help me.
0, Or negative number!
Given the rational number a, b satisfies that the absolute value of a is 3, the absolute value of b is 4, the absolute value of a-b=b-a, and the value of a+b is obtained The child's problem,
Absolute value of a-b = b-a, indicating that b is greater than a
So b=4 a=3 or -3
A+b=4+3=7 or a+b=4-3=1