(x-8)/3=-(x+2)/2
2(x-8)=-3(x+2)
2x-16=-3x-6
2x+3x=16-6
5x=10
x=2
把x=2代入方程4x-(3a+1)=6x+2a-1得
4×2-(3a+1)=6×2+2a-1
8-3a-1=12+2a-1
7-3a=11+2a
2a+3a=7-11
5a=-4
a=-4/5
(x-8)/3=(x-2)/-2 >>> -3x+16=3x+6 >>> x=2 >>> 4*2-(3a+1)=6*2+2a-1 >>> 8-3a-1=12+2a-1 >>> a=-4/5
x/3-8=x/(-2)+2
x/3+x/2=2+8
5x/6=10
x=10*6/5
x=12
则4x-(3a+1)=6x+2a-1
4*12-3a-3=6*12+2a-1
-3a-2a=72-1-46+3
-5a=30
a=-6
解方程:
(x-8)/3=-(x+2)/2
x=2,代入方程:
4x-(3a+1)=6x+2a-1
a=-4/5
x-8/3=-(x+2)/2。。。。。。。2x-16=-3x-6。。。。x=2
4x-(3a+1)=6x+2a-1。。。。。-2x=5a。。。。。a=-4/5
x=12,a=-16