Concept explainers
To solve: The given equation
Answer to Problem 20QC
The value of m is 2.
Explanation of Solution
Given information:
The equation is
Concept used: To get m alone, each side of the equation is divided by 9 and to check the solution, this value of m is put in given equation, so that the left side is equal to right side.
Calculation:
On dividing each side by 9,
Or,
Check:
On plug in
Left side
So, value of m calculated, is correct.
Thus, required value of m is 2.
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