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Chapter 3: Q.1 (page 166)

What is the value of 9-xwhen x=5?

A.1B.4C.14D.45

Short Answer

Expert verified

The correct solution for this question is B (4).

Step by step solution

01

Step 1.  Apply the concept of putting the given value of x

In this, simply use the concept of putting the given value of x in the equation to get the correct answer.

02

Step 2.  Find the solution of the equation

Here,

9-x=?

simply put the value of x in the above equation

put x=5

9-5=4

03

Step 3.  Eliminating the options to get correct one

A. 1 It is the incorrect option because by taking 1, the result is 9-5鈮�1

B. 4 It is the correct option because by taking, the result is 9-5=4which is absolutely correct.

C. 14 It is the incorrect option because by taking 14, the result is 9-5鈮�14

D. 45 It is the incorrect option because by taking 45 , the result is 9-5鈮�45

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