x/80+6=x/50-3請問具體怎么解,謝謝!
熱心網友
(x/80)+6=(x/50)-3移項:(x/50)-(x/80)=9兩邊同時乘以400,得8x-5x=36003x=3600x=1200
熱心網友
解:二邊同乘400,得:5X+2400=8X-1200化簡得:3X=3600所以:X=1200
熱心網友
(x/80)+6=(x/50)-3x/80-x/50=-95x/400-8x/400=-9-3x/400=-9-3x=-3600 x=1200
熱心網友
(x/80)+6=(x/50)-3 移項后得:(x/50)-(x/80)=6+3 同化分母后得:(80*x/50*80)-(50*x/80*50)=9分式運算:(80x-50x)/80*50=9 30x=9*80*50 x=1200
熱心網友
解: x/80+6=x/50-3 移項: 6+3=x\50-x\80 9=x\50-x\80=9 x\50-x\80=9 400(x\50-x\80)=9*400 8x-5x=3600 3x=3600 x=1200
熱心網友
x/80+6=x/50-3x/50-x/80=9兩邊同時乘以400,得8x-5x=3600 3x=3600 x=1200
熱心網友
整理得5x+2400=8x-1200,3x=3600,x=1200