Question

1/2(5-3x)=1/3(3-4x)

1、1/3(3x-2)+1/2(4x+3)=x-2
2、5（x+5）/3=4(x-3)/2+（3/4）x
3、0.7x-0.08/0.09=0.4x-7/0.2+1
4、0.8x-0.9/0.2=0.04x-0.1/0.03+x-2
5、0.5x-1/0.3=0.07x-0.1/0.02-5x-2/3
只写结果就行了.

Answer 1

1、1/3(3x-2)+1/2(4x+3)=x-2
x-2/3+2x+3/2=x-2
2x=-2-3/2+2/3
2x=-17/6
x=-17/12
2、5（x+5）/3=4(x-3)/2+（3/4）x 两侧乘以12
20(x+5)=24(x-3)+9x
20x+100=24x-72+9x
13x=172
x=172/13
3、0.7x-0.08/0.09=0.4x-7/0.2+1
0.7x-8/9=0.4x-35+1
0.3x=8/9-34
0.3x=-298/9
x=-2980/27
4、0.8x-0.9/0.2=0.04x-0.1/0.03+x-2
0.8x-9/2=0.04x-10/3+x-2
0.24x=5/6
x=125/36
5、0.5x-1/0.3=0.07x-0.1/0.02-5x-2/3
0.5x-10/3=0.07x-5-5x-2/3
5.43x=8/3-5
5.43x=-7/3
x=-700/1629