180 /6x −180/ (6+2)x =3怎么算

180 /6x −180/ (6+2)x =3怎么算
180 /6x −180/ (6+2)x =3怎么算

180 /6x −180/ (6+2)x =3怎么算
180 /6x −180/ (6+2)x =3
两边同时乘以24x去分母得：
720-540=72x
72x=180
x=2.5

180 /6x −180/ (6+2)x =3 要算6+2=8?
60 /6x −60/8x =1
10 /x −15/2x =1
20 /2x −15/2x =1
5=2x
x=5/2