ASSERTION: If x - 2 = 10 then value of x is 12 REASON: If a number satisfies an equation, then the numbers is known as a root of the equation.
The assertion is correct.
If we have the equation x - 2 = 10, we can solve it by adding 2 to both sides of the equation:
x - 2 + 2 = 10 + 2
x = 12
So, if x = 12, the equation x - 2 = 10 is satisfied and 12 is a root of the equation.