solve 2[x-1/x+3]-7[x+3/x-1]=5
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2[x-1/x+3]-7[x+3/x-1]=5
2x-2/x+3-7x-21/x-1=5
2x²-2x-2x+2-7x²-21x-21x-63/x²-1x+3x-3=5
-5x²-46x-61/x²+2x-3=5
-5x²-46x-61=5(x²+2x-3)
-5x²-46x-61=5x²+10x-15
5x²+10x-15+5x²+46x+61=0
10x²+56x+46=0
x=-23/5
x=−1
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