Answer:
X=9
Y=2
Z=1
99+22=121
xx+yy=zyz
Step-by-step explanation:
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y+2 = 3x
subtract 2 from each side
y = 3x-2
Missing fact is 13 seats are empty
<h3>step 1.</h3>
use graph paper.
<h3>step 2.</h3>
draw lines thru the graph wait go on my image above!