Question

Solve 4p – 2 = 18 using trial and error method.

Answer 1

Answer:

Let us take the value of p=1,

4(1) - 2

2 which is not equal to 18, hence p will not be 1.

Now, take p=2,

4(2) - 2

6 which is not equal to 18, hence p will not be 2.

Now, take p=3,

4(3) - 2

10 which is not equal to 18, hence p will not be 3.

Now, take p=4,

4(4) - 2

14 which is not equal to 18, hence p will not be 4.

Now, take p=5,

4(5) - 2

18 which is correct as per the question.

So the value of p is 5.

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