解下列方程:(5/12)X-X/4=1/3 2/3-8X=3-1/2X(5/12)X-X/4=1/3 2/3-8X=3-1/2X

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/14 19:31:52
解下列方程:(5/12)X-X/4=1/3 2/3-8X=3-1/2X(5/12)X-X/4=1/3 2/3-8X=3-1/2X

解下列方程:(5/12)X-X/4=1/3 2/3-8X=3-1/2X(5/12)X-X/4=1/3 2/3-8X=3-1/2X
解下列方程:(5/12)X-X/4=1/3 2/3-8X=3-1/2X
(5/12)X-X/4=1/3 2/3-8X=3-1/2X

解下列方程:(5/12)X-X/4=1/3 2/3-8X=3-1/2X(5/12)X-X/4=1/3 2/3-8X=3-1/2X
(1)(5/12)X-X/4=1/3
5X-3X=4
2X=4
X=2
(2)2/3-8X=3-1/2X
4-48X=18-3X
-48X+3X=18-4
-45X=14
X=-14/45

(5/12)X-X/4=1/3
(5/12)x-(1/4)x=1/3
(5/12)x-(3/12)=1/3
(2/12)x=1/3
(1/6)x=1/3
x=2

解:(5/12)X-X/4=1/3
=(5/12)X+(1/4)X=1/3
=(8/12)X=1/3
X=(1/3)除(12/8)
x=1/2
2/3-8X=3-1/2X
2/3=3-(1/2)x+8x
2/3=3-8.5x
8.5x=(2/3)+3
x=(17/2)除(11/3)
x=21/22

2/3-8X=3-1/2X
2/3=3-(1/2)x+8x
2/3=3-8.5x
8.5x=(2/3)+3
x=(17/2)除(11/3)
x=21/22