6.8+12÷x=10.8,14-0.5(x+3)=7.8,3.5x-3x-10=8,7.9-5x=7.8÷210x-20=6x,10+6x=8x,2(x+54)=8x,25-2x=5+2x

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6.8+12÷x=10.8,14-0.5(x+3)=7.8,3.5x-3x-10=8,7.9-5x=7.8÷210x-20=6x,10+6x=8x,2(x+54)=8x,25-2x=5+2x

6.8+12÷x=10.8,14-0.5(x+3)=7.8,3.5x-3x-10=8,7.9-5x=7.8÷210x-20=6x,10+6x=8x,2(x+54)=8x,25-2x=5+2x
6.8+12÷x=10.8,14-0.5(x+3)=7.8,3.5x-3x-10=8,7.9-5x=7.8÷2
10x-20=6x,10+6x=8x,2(x+54)=8x,25-2x=5+2x

6.8+12÷x=10.8,14-0.5(x+3)=7.8,3.5x-3x-10=8,7.9-5x=7.8÷210x-20=6x,10+6x=8x,2(x+54)=8x,25-2x=5+2x
6.8+12÷x=10.8,12÷x=4,x=12÷4,x=3;
  14-0.5(x+3)=7.8,0.5(x+3)=6.2,x+3=12.4,x=9.4
  3.5x-3x-10=8,0.5x=18,x=36
  7.9-5x=7.8÷2; 5x=4,x=0.8
  10x-20=6x,4x=20,x=5;
  10+6x=8x,2x=10,x=5;
  2(x+54)=8x,2x+108=8x,6x=108,x=18;
  25-2x=5+2x,4x=20,x=5

6.8+12÷x=10.8,14-0.5(x+3)=7.8,3.5x-3x-10=8,7.9-5x=7.8÷210x-20=6x,10+6x=8x,2(x+54)=8x,25-2x=5+2x 150.5x -4x +0.5x =7 解方程:68-4.4X=2449÷X=14例:32X+12=14032X+12-12=140-1232X=12832X÷32=128÷32X=4 解方程x-0.25x=75 3.2x+0.5x=18. y=0.5x(x+2)(3x-1) 求x轴交点. 麻烦给我下列简易方程的答案以及计算过程1:掌握书上例题类型的方程x+3.86=5.46 17.89-x=12.89 40.8+x=57.3 x-3.25=16.752x+0.82=8.2 3+0.5x=7 7.8÷x=2.6 80x÷4=125-0.9x=2.75 2x+0.4x=48 6-2x+6x=18 3 8x-5.5x=7.57.2x÷3.6=2 3x+6x-8x=0.7 12x-2x-5x=4.512x-x=0 5x+x=1.8 3.2x+1.8x=64.8x-0.8x=6 6.3-0.3x=9.6 8.6x-8.5x=0.720x-2x=36 9x+6x=4.5 18x-12x=5.42x-1.6x=3.6 18x+3x=7×6 1.2x-0.5x=0.71.3x+2.7x=1 4x-3.2x=6.4 0.8x+3.2x+3x=562.8x-2x=7.2 X×X-3X+1=0求分式X×X÷〈X×X×X×X+3X×X+1〉 ﹚(12+x﹚÷2=7 9×﹙x﹢6﹚=2x﹙14+11x﹚ 168-5x=9x .x+4=40-x-8 7×﹙x-2﹚=2x+36×﹙2x-7﹚=5×﹙x﹢8﹚+2 4.5-0.36x=6-0.51x 1500x=1200×﹙9-x﹚x÷5+9=21 30÷x+25=85 会做哪道就做哪道吧! 2x-3=5x-27+9x(方程) 3.2x+6.8=13.2(方程) 5x+24-2x=14x+2x-3=5x-27+9x(方程)3.2x+6.8=13.2(方程)5x+24-2x=14x+2(方程) (x-1分之x²-x+1)÷1-x分之4x²-4x+1其中x满足x²+x-2=0 42:X=0.7×14 X 6X-12=—+13.42:X=0.7×14X6X-12=—+13.63 若x²-5x+1=0 那么x²+x+1÷x²+1÷x=? 解方程.2.5x=14 3.4x-48=26.8 42x+25x=134 x-7.9=2.6 x解方程.2.5x=143.4x-48=26.842x+25x=134x-7.9=2.6x÷3=1.22x-97=34.213(x+5)=169 已知6≤x<14求四次函数 f﹙x﹚=﹙x²+12x+36﹚﹙-x²+12x+28﹚最大值 解方程 8x+3×1.5=16.5 6x+1.2x=14.4 (x+7.3)×2.5=25解方程8x+3×1.5=16.56x+1.2x=14.4(x+7.3)×2.5=258x÷1.2=23x+(10-x)=12.8(13-0.5)x=16÷1.6 解方程:(x+18)÷(x÷13.5)=x÷<(x+18)÷24>; 12÷x×12-1=12÷(x+2) ×12别混在一起!最好有慨念!)总之越详细越好!我再写一遍:(12/x) ×12-1=(12/(x+2) )×12(x+18)/(X÷13.5)=x/ 〔(x+18)÷24〕我才初 x-20%x=4 4x-75%=0.25 x÷四分之五=40% 20%x+30%x=120