Решите уравнение (x-10)(x-1)-(x+1)(x-4)=6

Question

Решите уравнение
(x-10)(x-1)-(x+1)(x-4)=6

Answer 1

(x^2-10x-x+10)-(x^2-4+x-4x)=6;
(x^2-11x+10)-(x^2-4-3x)=6;
x^2-11x+10-x^2+4+3x=6;
14-8x=6;
-8x=-8;
x=1.