Question

ДАЮ 20 БАЛЛОВ.
УРАВНЕНИЯ.

Answer 1

a) (3x+11+9+2x)/(x+4)= (5x+20)/(x+4)= 5(x+4)/(x+4)= 5;

б) (7x-11)/(2x-5)-(x+4)/(2x-5)= (7x-11-x-4)/(2x-5)=(6x-15)/(2x-5)= 3(2x-5)/(2x-5)=3;

в) (5х-11-7-2х)/(x-6)=(3x-18)/(x-6)= 3(x-6)/(x-6)= 3;