Question

John is 7 years older than his sister and the sum of their ages is 21 years find their ages

Answer 1

Answer:

john 14 years old

john's sister 7 years old

SUM OF THEIR AGES = 14+7 =21(verified)

Step-by-step explanation:

Answer 2

This is your answer :-

Hope you get it

Take care

PLS MARK THIS ANSWER BRAINLIEST

sister------> x

Jhon-------> x+7

x+(x+7)=21

2x+7=21

2x=21-7

2x=14

x=14/2

x=7 --------> sisters age

x+7 ---------> john

So, 7+7=14 -----------> John

So Paula is 9 and Peter is 12