Question

if a is the preedecessor of b then the value of (a-b) and (b-a) are

Answer 1

hey frnds.....
predecessor of b is a .....
so (a-b) = -1 ...
and (b-a) = 1 ......
I hope its help you

Answer 2

Answer:

a - b  = -1

b -a = 1

Step-by-step explanation:

The number that comes just before a number is called predecessor.

Hence, the predecessor of the number b is b -1 and it should be equal to a.  

Mathematically, we can write

$b-1=a$

Subtract b to both sides of the equation

$a-b=-1$

Now, multiply both sides by -1

$-1(a-b)=-1(-1)\\\\b-a=1$

Hence, we have

a - b  = -1

b -a = 1