Question #c79bc

2 Answers

Your sister's age is 9
and your age is 14

Explanation:

Let your sister's age be x
Your age is x+5

2x+5=23

So x=9

x+5 = 14

Apr 28, 2017

Sister is 9 years old and you are 14 years old

Explanation:

Let your sister's age be x

Then, you are x+5 years old if your sister is x years old

:.(x+5)+x=23

:.2x+5=23

:.2x=23-5

:.2x=18

:.x=9 your sister's age

check:

substitute x=9

(9+5)+9=23

14+9=23

23=23

your age:.=(x+5)=9+5=14 years old.