解方程 3x+5/2=2x-1/3 x-3/-5=3x+4/15 3y-1/4-1=5y-7/6 5y+4/3+y-1/4=2-5y-5/12 3x-1/7-3-x/2=1
解方程 3x+5/2=2x-1/3 x-3/-5=3x+4/15 3y-1/4-1=5y-7/6 5y+4/3+y-1/4=2-5y-5/12 3x-1/7-3-x/2=1
3x+5/2=2x-1/3x=-1/3-5/2x=-17/6x-3/-5=3x+4/152x=3/5-4/152x=2/15x=1/153y-1/4-1=5y-7/63y-5y=-7/6+1+1/42y=7/6-5/42y==2/24y=-1/245y+4/3+y-1/4=2-5y-5/126y+5y=2-5/12-4/311y=1/12y=1/1323x-1/7-3-x/2=13x-x/2=29...用一元一次方程解这不就是一元一次方程吗?[3x+5]/2=[2x-1]/3;[x-3]/-5=[3x+4]/15;[3y-1]/4-1=[5y-7]/6; [5y+4]/3+[y-1]/4=[2-5y-5]/12 ; [3x-1]/7-[3-x]/2=1这个题是这个意思 个懂?[3x+5]/2=[2x-1]/33(3x+5)=2(2x-1)9x+15=4x-25x=17x=17/5[x-3]/-5=[3x+4]/15-3(x-3)=3x+4-3x+9=3x+4-6x=-5x=5/6[3y-1]/4-1=[5y-7]/63(3y-1)-12=2(5y-7)9y-3-12=10y-14-y=1y=-1[5y+4]/3+[y-1]/4=[2-5y-5]/124(5y+4)+3(y-1)=2-5y-520y+16+3y-3=-5y-328y=-16y=-4/7[3x-1]/7-[3-x]/2=12(3x-1)-7(3-x)=146x-2-21+7x=1413x=37x=37/13