[(8Y-20)÷Y]×(Y+5)-8Y=16

问题描述:

[(8Y-20)÷Y]×(Y+5)-8Y=16
Y是等于多少呢?
希望能详细分解,不要直接写答案.详细讲解怎么去括号.

(8y-20)(y+5)/y=8y+16
(8y-20)(y+5)=y(8y+16)
8y²+20y-100=8y²+16y
4y=100
y=25(8y-20)(y+5)=y(8y+16)�ⲿ���������ϸ��˵һ��8y²+20y-100=8y²+16y����ôȥ���ŵ���лл�˷���ʽ��8y(y+5)-20(y+5)=y(8y+16)8y��y +8y��5 -20��y -20��5=y��8y +y��16