Question

5 substacted from 2 times a number gives 45​

Answer 1

Answer:

let the number be x. Then,

2x - 5 = 45

2x = 45 + 5

2x = 50

x = 50/2

x = 25

Answer 2

Answer:

Number = 25

Step-by-step explanation:

5 substracted from 2 times a number gives 45

=> 5 substracted from (2×number) = 45

[let us consider number as x]

=> 5 substracted from 2x = 45

=> 2x - 5 = 45

=> 2x = 45 + 5

=> 2x = 50

=> x = 50/2

=> x = 25

Hence the number = 25

To verify :-

5 substracted from 2 times number = 45

=> 5 substracted from 2×25 = 45

=> 2×25 - 5 = 45

=> 50-5 = 45

=> 45 = 45

=> LHS = RHS

hence verified.

Extra information :-

In any equation,

• substracted from = (-)
• Times = (×)
• gives = equal to (=)
• A number = a variable, usually ‘x’. You can write any alphabet.

hope it helps.