(x+10)(x-6)-(x-1)(x+1)=1

(x+10)(x-6)-(x-1)(x+1)=1
(x²-6x+10x-60)-(x²+1x-1x-1)=1
x²-6x+10x-60-x²-1x+1x+1=1
-6x+10x-60x+1=1
-6x+10x-60x=1-1
-56x=0
x=0÷(-56)
x=0