Question

If you subtract 12 from a number and multiply the result by 12 , you get 18 . What is the number?

Answer 1

Answer:

$x=13.5$

Step-by-step explanation:

Let the number be $x$.

So the equation formed will be:

$(x-12)12=18$ open the bracket by multiplying 12 to x-12

$12x-144=18$

$12x= 18 + 144\\\\12x= 162\\\\x= \frac{162}{12} \\\\x= 13.5$

Answer 2

Given :

• If 12 is subtracted from a number and multiplied by 12 the result is 18.

To find :

• The number

Solution :

Let the number be x.

According to the question,

⟶ (x - 12) × 12 = 18

⟶ x - 12 = 18/12

⟶ x - 12 = 1.5

⟶ x = 1.5 + 12

⟶ x = 13.5

⟶ The value of x = 13.5

Therefore, the number is 13.5.

_____________________

• Let's verify :

We can verify the value of the number by substituting it in the equation "(x - 12) × 12 = 18" if the left hand side will be equal to the right hand side then the value of the number is correct.

⟶ (x - 12) × 12 = 18

Taking LHS,

⟶ (x - 12) × 12

⟶ (13.5 - 12) × 12

⟶ 1.5 × 12

⟶ 18

LHS = 18

RHS = 18

LHS = RHS

Hence, Verified!