Hi!
Let's solve.
First, we want to solve the first equation:
5 - 3y = 6
subtract 5 from both sides
-3y = -1
divide both sides by -1
y = 1
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Next, solve the other part:
(5 - 3y)² can also be written as (5 - 3y)(5 - 3y).
(5 - 3y)(5 - 3y)
distribute
25 - 15y - 15y + 9y²
simplify
25 - 30y + 9y²
substitute "y" for 1
25 - 30(1) + 9(1)²
multiply and exponents
25 - 30 + 9
subtract/add
4
Therefore, your answer is 4.
Hope this helps! Let me know if you need help with anything else! :0)
