Câu 1 : 1/3.x + 2/5.x ( x - 1 ) = 0
< = > 1/3.x + 2/5.x - 2/5 = 0
< = > 1/3.x + 2/5.x = 2/5
< = > 11/15 .x = 2/5
< = > x = 2/5 : 11/15
< = > x = 6/11
Vậy x = 6/11
Bài mk làm đúng rồi cho mk sửa lại cái đề 1/3.x + 2/5 . ( x - 1 ) = 0
Câu 1 : 1/3 . x + 2/5 . ( x - 1 ) = 0
Câu 2 : 4/x+2 = 5/2.x + 1
Câu 1 : 1/3.x + 2/5.x ( x - 1 ) = 0
< = > 1/3.x + 2/5.x - 2/5 = 0
< = > 1/3.x + 2/5.x = 2/5
< = > 11/15 .x = 2/5
< = > x = 2/5 : 11/15
< = > x = 6/11
Vậy x = 6/11
Câu 1 : 1/3 . x + 2/5 . ( x - 1 ) = 0
Câu 2 : 4/x+2 = 5/2.x + 1
Câu 1 : 1/3.x + 2/5.x ( x - 1 ) = 0
< = > 1/3.x + 2/5.x - 2/5 = 0
< = > 1/3.x + 2/5.x = 2/5
< = > 11/15 .x = 2/5
< = > x = 2/5 : 11/15
< = > x = 6/11
Vậy x = 6/11
Giải
Câu 1 : 1/3 . x + 2/5 . ( x - 1 ) = 0
Câu 2 : 4/x+2 = 5/2.x + 1
Câu 1 : 1/3.x + 2/5.x ( x - 1 ) = 0
< = > 1/3.x + 2/5.x - 2/5 = 0
< = > 1/3.x + 2/5.x = 2/5
< = > 11/15 .x = 2/5
< = > x = 2/5 : 11/15
< = > x = 6/11
Vậy x = 6/11
Câu 1 : 1/3 . x + 2/5 . ( x - 1 ) = 0
Câu 2 : 4/x+2 = 5/2.x + 1
Câu 1 : 1/3.x + 2/5.x ( x - 1 ) = 0
< = > 1/3.x + 2/5.x - 2/5 = 0
< = > 1/3.x + 2/5.x = 2/5
< = > 11/15 .x = 2/5
< = > x = 2/5 : 11/15
< = > x = 6/11
Vậy x = 6/11