解下列方程:(5⼀12)X-X⼀4=1⼀3 2⼀3-8X=3-1⼀2X

(5⼀12)X-X⼀4=1⼀3 2⼀3-8X=3-1⼀2X
2025-01-05 17:26:13
推荐回答(4个)
回答1:

(1)解:(5/12)X-X/4=1/3
5X-3X=4
2X=4
X=2
(2)解:2/3-8X=3-1/2X
4-48X=18-3X
-48X+3X=18-4
-45X=14
X=-14/45

回答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

解: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

回答3:

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

回答4:

(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