Question

If the sum of three times a number and 12 is 30 , then the number is _____________ 2 points. Who will find answer they are genises.

Answer 1

Given,

The sum of three times of a number and 12 = 30

To find,

The value of that number.

Solution,

Let, the number = x

(Assume, x as a variable to do the further mathematical calculations.)

LHS (Left Hand Side) formation of the given equation,

= (3×x)+12

= 3x+12

RHS (Right Hand Side) of the given equation

= 30

So,the equation wil be,

3x+12 = 30

3x = 30-12

3x = 18

x = 6

The number = 6

Hence, the number will be 6.