18.6/2.5/0.4=?3.5/0.125=?8.37-3.25-(1.37+17.5)=?怎么算 用简便方法

18.6/2.5/0.4=?3.5/0.125=?8.37-3.25-(1.37+17.5)=?怎么算 用简便方法 18.6÷2.5÷0.4 简算:= = = = 3.5X=0. 解方程 6（x-3.5）=18.6 x-0.4x=0. 0.8:0.4=x:0. 2.5*1.1*0.4=2.5*()*()什么意思 2.5×8-8x=4 0.4 ×(x-1.5)=1.6 (4.7-3.5) ÷X=0.4 x÷24-6.35=2.15 0.8 ×1.5- 0.4×(x-1.2)= 1.6x2.5×8-8x=4 0.4 ×(x-1.5)=1.6 (4.7-3.5) ÷X=0.4 x÷24-6.35=2.150.8 ×1.5- 0.4×(x-1.2)= 1.6x 2x+3.6*2=12.4 3(x+3.6)=18.6 x+3.5x=13.5 27x-4x=34.5 3x+2.8=4.3 12x-24=6 3x+9=10.5 5x+1.2=4.7 3*1.5+2x=11.55.4+1.8x=6.3 4.4x-2.7x=5.78 2.5x-3.6=6.4 2x+3.6*2=12.4 3(x+3.6)=18.6 x+3.5x=13.5 18.6÷2.5÷0.8 2.8÷(3+x)=3.5×0. 简算：1.10*18.6 9.99*2.5 68/25 3.4*1.2-0.65 = = = = 1.5x-3.5×0.4=7.6方程 3.5-0.4x=2.7怎么算? 3.5-0.4x=1.7x2 （18.6-18.6÷3.1）×0.4的简便计算 x一0.4x=0. 1.5/0.4=3……0.