解下列方程,注意:要步骤 x⼀2-3x-1⼀3=1 4x-3(20-x)=6x-7(9-x) 1⼀2(x-1⼀2(x-1)=2⼀3x-1 3⼀2(2⼀3(x⼀4-1)-2)-

2024-12-19 13:48:36
推荐回答(1个)
回答1:

x/2-3x-1/3=1
-5/2x=4/3
x=-8/15

4x-3(20-x)=6x-7(9-x)
7x-60=15x-63
8x=3
x=3/8

1/2(x-1/2(x-1))=2/3x-1
1/4x+1/4=2/3x-1
5/12x=2
x=5/24

3/2(2/3(x/4-1)-2)-x=2
-3/4x-2=2
x=-16/3

x/0.7-0.17-2x/0.03=1
10/7x-17/100-200/3x=1
-1370/21x=83/100
x=-1743/137000