SOLUTION: I am 6 years older than my sister. The sum of our ages is 24 years. How old am I?

Question 1090309: I am 6 years older than my sister. The sum of our ages is 24 years. How old am I?
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

let my age be , and the age of my sister
if I am years older than my sister, we have
.....eq.1
if the sum of our ages is years, we have
..........eq.2 substitute from eq.1
...solve for

-> my sister is years old

.....eq.1 substitute

-> I am years old

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