Question

1. The sum of three times a number and 15 is 42. Find the number.​

Answer 1

let,s put a number is x

3 × x + 15 = 42

3x + 15 = 42

3x = 42 - 15

3x = 27

x = 27 ÷ 3

x = 9

number is 9

Answer 2

☆ Solution ☆

Given :-

• The sum of three times a number and 15 is 42 .

To Find :-

• The number.

Step-by-Step-Explaination :-

Let the number be x

According to the question,

3x + 15 = 42

3x = 42 - 15

3x = 27

x = 27/3

x = 9

Hence,

The number = 9 .