Question

twice a number when decreased by 7 gives 45 .
find the number​

Answer 1

Answer:

I hope this answer will help you and please make me brain list

Step-by-step explanation:

Let the number be x.

twice =2x

When it is decreased by 7 we get the following equation:

2x−7=45

⇒2x=45+7

⇒2x=52

⇒x=  

2

52

​  

 

∴x=26

The number is 26.

Answer 2

Answer:

26

Step-by-step explanation:

let the number be x

2x - 7 = 45

2x = 45+7

2x = 52

x = 52/2

x = 26

The number = 26