Question

If twice a number is increased by 15, the result is 51. What is the number?

Answer 1

Answer:

18

Step-by-step explanation:

Let the number be x

given that,

twice the number is increased by 15

• 2x+15

The required result is 51

Therefore,

2x+15=51

2x=36

x=18

Hence the required number is 18

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Answer 2

Step-by-step explanation:

let us, the number is x

twice the number = 2x

than, increased by 15 so = 2x + 15

than the result is 51

so, 2x + 15 = 51

2x = 51 - 15

2x = 36

x = 36/2

x = 18

the number is 18