Find the difference:
X+1
x-1
-
X-8
x-1
O
이
9
x-1
2x-7
x-1
o
-7
1
2x + 9
1
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x+1 - x-8
x-1. x-l
x+1 - x-8
x-1
x-x-8+1
x-1
= -7
x-1
the answer is -7
x-1