Question

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

Answer 1

Let the no. be x

ATQ,
3x+15 =42
3x =42-15
x =27/3
x =9


Thus,
The no. is 9..



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Answer 2

let the number be x
3x+ 15= 42
3x= 42-15
x= 27/3=9