中一數學功課問題,只問一題,10分!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

2x=3(1-x)-(x+1) *正負得負*
2x=3．1-3．x - x -(+1)
2x=3-3x-x-1 * 負(-)轉到左邊 =正(+)*
2x+3x+x=3-1
6x=2
x=2/6(約簡)
x=1/3
*．=乘號*

2x=3(1-x)-(x+1)
6x=2
x=1/3

2x=3(1-x)-(x+1)
2x=3-3x-x-1
2x+3x+x=3-1
6x=2
x=2/6
x=1/3

2x=3(1-x)-(x+1)

2x = 3 - 3x - x -1
2x = 2 - 4x
2x + 4x = 2 - 4x + 4x
6x = 2
x =2/6
x = 1/3

@@!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!快!!!!!!!!!!!!!!!!!!!!!! 快!!!!!!!!!!!!!!!!!!!!!!

like this ;

2x=3(1-x)-(x+1)
6x=2
x=2/6
x=1/3

2x=3(1-x)-(x+1)
2x=3-3x-x-1
2x=-4x+2
6x=2
x=1/3

2X=3-3X-X-1
2X=2-4X
6X=2
X=1/3


選我最佳回答

2x=3-3x-x-1
6x=2
x=1/3

2x=3(1-x)-(x+1)

2x = 3 - 3x - x -1
2x = 2 - 4x
2x + 4x = 2 - 4x + 4x
6x = 2
x =2/6
x = 1/3

2x = 3 - 3x -x -1
6x = 3
x =1/3