Question

Find the value x in 5x=15 using the trial and error method.

Answer 1

☘️ Solution :

• 5x = 15

By trail and error method:

→ p(x) = 5x - 15 = 0

→ p(1) = 5 × 1 - 15 = 10

→ p(2) = 5 × 2 - 15 = 5

→ p(3) = 5 × 3 - 15 = 0

As we got the answer 0 by substituting the value of x as 3. We can say that 3 is the value of x in this question.

☘️ Answer :

• 3 is the answer of the respective question.

Answer 2

SOLUTION

TO DETERMINE

The value x in 5x = 15 using the trial and error method.

EVALUATION

Here the given equation is

5x = 15

We solve using trial and error method as below

Putting x = 0 we get

$\sf 5 \times 0 = 15$

$\sf \implies \: 0 = 15$

Which is not true

Putting x = 1 we get

$\sf 5 \times 1 = 15$

$\sf \implies \: 5 = 15$

Which is not true

Putting x = 2 we get

$\sf 5 \times 2 = 15$

$\sf \implies \: 10 = 15$

Which is not true

Putting x = 3 we get

$\sf 5 \times 3 = 15$

$\sf \implies \: 15 = 15$

Which is true

Hence the required solution x = 3

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