1.(6+9)x=1.5 2.x+(x+1)=97
15x=1.5 2x+1-1=97-1
15x/15=1.5/15 2x=96
x=0.1 2x/2=96/2
x=48
3.x+2x=48
(1+2)x=48
3x=48
3x/3=48/3
x=16
鸡:16/2=8
兔:(48-16)/4=8
1.(6+9)x=1.5 2.x+(x+1)=97
15x=1.5 2x+1-1=97-1
15x/15=1.5/15 2x=96
x=0.1 2x/2=96/2
x=48
3.x+2x=48
(1+2)x=48
3x=48
3x/3=48/3
x=16
鸡:16/2=8
兔:(48-16)/4=8