Question

thrice a number when increased by 4 gives 43. find the number

Answer 1

let the number be X,
a/q, 3x+4 =43
3x = 43-4
3x=39
X= 13
hence the required number is 13

Answer 2

let the no. be x
then according to question
3x+4=43
3x=43-4=39
x=39/3=13