Question

A number is tripled and than increadby five. The result is 47. The number is __________.​

Answer 1

Answer:

14

Step-by-step explanation:

Let the required number be x.

When the number is tripled, it becomes 3x. Now,

When 5 is added to it. The numbers become, 3x + 5.

According to the question;

⇒ 3x + 5 = 47

⇒ 3x = 47 - 5

⇒ 3x = 42

⇒ x = $\sf \dfrac{42}{3}$

⇒ x = 14

Hence, the required number is 14.

_______________________

Verification:

3x + 5 = 47

⇒ 3 * 14 + 5 = 47

⇒ 42 + 5 = 47

⇒ 47 = 47

∴ LHS = RHS

_______________________

Therefore, the number is 14.

Answer 2

Question: A number is tripled and then increased by 5. The result is 47. The number is _______.

Answer:

$\textbf {The number is 14.}$

Step-by-step explanation:

Let the unknown number be x.

Now, it's multiplied by 3, so it will become, 3x.

And now, 5 is added to it, so, the final number will be 3x+5.

But it's given that the result of this number is 47.

So, forming the equation,

$\rm 3x+5=47\\ \rm \implies 3x=47-5\\ \rm \implies 3x=42\\ \rm \implies x=\frac{42}{3}\\ \rm \therefore x=14$

Hence, the unknown number is 14.

_____________

Now we need to verify our answer.

The equation was

3x+5=47

Putting, x=14

(3×14)+5=47

42+5=47

47=47

Now, as LHS=RHS, therefore, x is 14.