let
x - chase
x + 13 - serenity
equation:
x + x + 13 = 27
Solution:
x + x + 13 = 27
2x + 13 = 27
2x = 27 - 13
2x = 14
x=7
Therefore, chase is 7 years old and serenity is 20 years old.
serenity is 13 years old than chase. the sum of their ages is 27. how old are they?
2 answers
let the unit digit be x
let the tens digit be 4x
original number: 10(4x) + x = 41x
number reversed: 10x + 4x = 14x
41x + 14x = 110
55x = 110
x = 2
the original number is 84
try switching my definition and see what you get
let the tens digit be 4x
original number: 10(4x) + x = 41x
number reversed: 10x + 4x = 14x
41x + 14x = 110
55x = 110
x = 2
the original number is 84
try switching my definition and see what you get