Are you asking to simplify all of those equations?
Answer:
It is b^6
Step-by-step explanation:
Assuming you need to find the solution, it's x=3 and y=6
I used elimination
Answer:
turn the fractions into decimals
7/20 = 0.35
1/5 = 0.20
the answer is
0.38 then 7/20 then 0.34 then 1/5