Answer:
She needs to make 10 rows of chairs
Hope this helps!!
the answer is 96 it's 12 x 8
x=-6+2y
x=2+2y
by subtraction
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x=-8
Substitute x by one of the two equations :
-8=-6+2y
2y=-8+6
2y=-2
y=-2/2
y=-1
I think this is the answer
I hope I helped you^_^
