Answer:
See explanation
Explanation:
Solution:-
- There are two ways to verify whether the value of ( h ) assumed to be equal to 9 satisfies the given equation:
13 + h = 21
First method: Solving for ( h ) using the given equation
1 ) Subtract ( 13 ) on both sides of the equation:
13 - 13 + h = 21 - 13
0 + h = 8
h = 8
2 ) Compare the evaluated value of ( h ) with the assumed value:
8 ≠ 9
3 ) Conclude: The given value of ( h ) is not a solution of the given equation.
Second method: Plug and compare
1) Plug the assumed value of h = 9 into the given equation:
13 + ( 9 ) = 21
22 = 21
2) For the equality to be true then the both right and left hand side of the " = " must be of same numerical value:
22 ≠ 21
3) Conclude: The given value of ( h ) is not a solution of the given equation.