Question

verify a-(-b)=a+b for the following values of a and b ii)a=-3,b=-8​

Answer 1

Given:

$a=-3$, $b=-8$

To verify:

$a - ( - b) = a + b$

Solution:

Let us first solve for L. H. S.

Since the value of $a$ and $b$ are known to us, just plug them in the above expression.

$\longrightarrow{\green{}}$ $- 3 - [ - ( - 8)]$

$\longrightarrow{\green{}}$ $- 3 - ( + 8)$

$\longrightarrow{\green{}}$ $- 3 - 8$

$\longrightarrow{\green{}}$ $- 11$

Now, R. H. S.

$\longrightarrow{\green{}}$ $- 3 + ( - 8)$

$\longrightarrow{\green{}}$ $- 3 - 8$

$\longrightarrow{\green{}}$ $- 11$

$\longrightarrow{\green{}}$ L. H. S.

Since L. H. S. = R. H. S.

Hence it is verified.