Question

x-3/4-5x-4=1又1/2 5-2x/4=1-3x/3 y-y-1/2=2-y+2/5 x-2[x-1/2(x-1)]=2/3(x+1)

0.1-0.2x/0.3-1=0.7-x/0.4
3/4-5x=5/6-2/3x
要过程

Answer 1

x-3/4-5x-4=1又1/2
-4x=4+3/4+3/2
x=-25/16

5-2x/4=1-3x/3
3( 5-2x)=4(1-3x)
15-6x=4-12x
6x=-11
x=-11/6

y-y-1/2=2-y+2/5
10y-5y+5=20-2y-4
7y=11
y=11/7

x-2[x-1/2(x-1)]=2/3(x+1)
x-2x+(x-1)=2/3x+2/3
-1-2/3=2/3x
x=-5/2

0.1-0.2x/0.3-1=0.7-x/0.4
1-2x/3-1=7-10x/4
4(1-2x)-12=3(7-10x)
4-8x-12=21-30x
22x=29
x=29/22
3/4-5x=5/6-2/3x
5x-2/3x=3/4-5/6
13/3x=-1/12
x=-1/52