Question

the sum of a number and 3 times itself is 88 what is the number

Answer 1

Let the number be x

So by the condition given in your Questionwe get equation

x+3x=88

4x=88

x=22

So the number is 22

Answer 2

let the numbers be x and 3x
x+3x=88
4x = 88
x = 88/4
x= 22
3x = 22*3 = 66
Thus the number are 22 and 66.