来自贺鹏的问题
解方程【以下几道】3/5除(x-0.45)=1/45x-12=3x+121.6x-2/5x+6=100.9*12-3/4x=30.75x-2=1/2x2.4/(x+1/5)=0.2急用!
解方程【以下几道】
3/5除(x-0.45)=1/45x-12=3x+121.6x-2/5x+6=100.9*12-3/4x=3
0.75x-2=1/2x2.4/(x+1/5)=0.2
急用!


解方程【以下几道】3/5除(x-0.45)=1/45x-12=3x+121.6x-2/5x+6=100.9*12-3/4x=30.75x-2=1/2x2.4/(x+1/5)=0.2急用!
解方程【以下几道】
3/5除(x-0.45)=1/45x-12=3x+121.6x-2/5x+6=100.9*12-3/4x=3
0.75x-2=1/2x2.4/(x+1/5)=0.2
急用!
x-0.45=3/5÷1/4=4×3/5=12/5x=0.45+12/5=45/100+12/5=9/20+12/5=9/20+48/20=57/20=2有17/20
5x-3x=12+12=242x=24x=121,6x=16/10x=8/5x8/5x-2/5x=46/5x=4x=20/6======3又1/310.8-3/4x=43/4x=10.8-3=7.8=78/10=39/5x=39/5÷3/4=52/5=10又2/5
0.75x-0.5x=20.25x=2x=2÷0.25=8x+1/5=2.4÷0.2=12x=12-1/5=11又4/5