Question

If we add the _________ number to both sides of an equality, it holds.

Answer 1

Suppose we have an equation i.e. $x=5$

So, when we add $5$on both side we get $x+5=5+5$

i.e. $x+5=10$

$x=10-5$ which is same as $x=5$

Hence, If we add the same number to both sides of an equality, it holds.