X-4y=28
8x+4y=8
---------------
9x=36→x=4
4-4y=28→y=6
—-----------------------------------------------------------
y-5=x
4(y-5)-y=4
4y-20-y=4
3y=24
y=8
x8-5=3
Answer: sqrt(62)
Step-by-step explanation:
1st one: zero
2nd one: one
I have no idea bro, sorry