Question

@ x+y=9, if x = 4 then y
y=
​

Answer 1

Answer:

x+y=9, x=4, 4+y=9, y=5, y y=y*y=5*5=25

Step-by-step explanation:

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Answer 2

Answer:

x+y=9

4+y=9

=) y=9-4

=) y = 5

then y*y = y^2 = 5*5 = 25. .