SOLUTION: The sum of 4 times a girls age and 7 times annoys age is 169. The boy is 1 year older than twice the age of the girl. Find how old each will be 10 years from now.

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Question 1063889: The sum of 4 times a girls age and 7 times annoys age is 169. The boy is 1 year older than twice the age of the girl. Find how old each will be 10 years from now.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
g, girl's age
b, boy's age
The description can be described with this system:
system%284g%2B7b=169%2Cb=1%2B2g%29


First step could be substitute:
4g%2B7%282g%2B1%29=169
.
.
continue from there.