Question

Twice a number when decreased by 3 gives 21. The number is..​

Answer 1

Answer:

let the no. be x

2x -3 =21

2x= 21+3

2x = 24

x= 24÷2

x= 12

x=12 is ur answer

Answer 2

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To Find :

The number

Solution :

Let the number be x

So, our equation is

$2x - 3 = 21$

$2x = 21 + 3$

$2x = 24$

$x = \frac{24}{2}$

$x = 12$

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