Question

sum of three consecutive number is 90. find the number

Answer 1

let the numbers be x, x+1 and X+2
so
x+x+1+x+2=90
3x+3=90
3x=87
x=87÷3
x=29
x+1=30
x+2=31

therefore the numbers are 29, 30 and 31

Answer 2

X+X+1+X+2=90
3X+3=90
3X=90-3
3X=87
X=87/3
X=29
Ans=29,30,31