Question

if a number is tripled and then reduced by 9 the result is 66​

Answer 1

Answer:

let the required number be x

3x-9=66

3x=66+9

3x=75

x=75/3

x=25

Answer 2

Given:-

If a number is tripled and then reduced by 9 the result is 66​.

» The equation for this statement is :

3x - 9 = 66

To find:-

The value of the unknown number x.

Answer:-

By the transposition method,

» 3x - 9 = 66

» 3x = 66 + 9   (transposing -9 to the RHS)

» 3x = 75

» x = 75/3   (transposing 3 to the RHS)

» x = 25

The value of x is 25.

Let's Verify !!

Putting x = 25,

3(25) - 9 = 66

75 - 9 = 66

LHS = RHS

Hence verified!!