# Question #334b6

##### 1 Answer

#### Explanation:

#B=# Becky's Age#R=# Rob's Age

So

Start by substituting. We know that

so we can substitute that into the first equation and get

Add

So

and that can be plugged back into the equation as

which becomes

#B=# Becky's Age#R=# Rob's Age

So

Start by substituting. We know that

so we can substitute that into the first equation and get

Add

So

and that can be plugged back into the equation as

which becomes