
楼主算错了吧
1、(4x+20)/4=(6x-20)/5+2
4(x+5)/4=(6x-20)/5+2
x+5=(6x-20)/5+2
5(x+5)=(6x-20)+2×5
5x+25=6x-10
x=35
2、(4x+20)/4+2=(6x-20)/5
4(x+5)/4 +2=(6x-20)/5
x+5+2=(6x-20)/5
5(x+7)=6x-20
5x+35=6x-20
x=55

楼主算错了吧
1、(4x+20)/4=(6x-20)/5+2
4(x+5)/4=(6x-20)/5+2
x+5=(6x-20)/5+2
5(x+5)=(6x-20)+2×5
5x+25=6x-10
x=35
2、(4x+20)/4+2=(6x-20)/5
4(x+5)/4 +2=(6x-20)/5
x+5+2=(6x-20)/5
5(x+7)=6x-20
5x+35=6x-20
x=55