Answer:
Sydney's Age is 6
Step-by-step explanation:
6 x 2 = 12
12 + 6 = 18
Sydney is 6
You get this by dividing 18 by three, as one set of 6 is Sydney while tcice that is her brother.
we are going to place 2 at the place where x is
5(2)-5
10-5
5 is your answer I believe
I think a) vertical, but I'm not 100% sure.
