Question

In the following addition problem, each of the letters a , b and c stands for a digit.

The value of a + b + c is:
also please tell me the formula used for such kind of sums​

Answer 1

Answer:

a + b + c is equal to 8

a + b + c = 8

Answer 2

Answer:

Step-by-step explanation:

b+c=4

c+b=a

so clearly, by commutative property of addition

b+c=c+b

4=4

since a+a = c

clearly a=c/2

and c-b=c+(-b)

c=8

b=-4

a=4

8+4-4

=12-4

=8