SOLUTION: Pamela is 9 years older than Jiri. The sum of their ages is 89.What is Jiri's age?

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Question 940512: Pamela is 9 years older than Jiri. The sum of their ages is 89.What is Jiri's age?
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
x= Jiri's age,
so x%2B9= Pamela's age.
The sum of their ages is 89 means
x%2B%28x%2B9%29=89
x%2Bx%2B9=89
2x%2B9=89
2x=89-9
2x=80
x=80%2F2
highlight%28x=40%29
Jiri's age is highlight%2840%29 .