(7.5x-0.75=0.25*3)这道题怎么算?

x-0.25x=7.5 (x-(x/7.5+x/5))/(x/5)=10/3 10x-3.14*x*x*0.25=3.14*x*x*0.75 怎么算 解方程 4x+0.5=7.5 0.25x+3=0.3x 0.4(x-16 )=15.2 x-o.8x=6 12x-8x=4.8 3x-8=16 7.5x-2x x-0.7x=3.6 求答案 求未知数x的值(x+4)÷5=61.2×(x+5)=14.44.2x÷1.6-14=0.175(10-7.5)x=0.125×85x-20%x=19.281x-342=76(x-2)0.3x+7x-0.25x=21.15x÷1右5/18=2右8/231右2/3-1右7/30x=1右1/201/2x+1/3x=4 8.5x()+3x()-1.5x()=7.5 ()=() 12.5x-0.75x+3=7.3-1.5x 1-3x=1.5x-0.75 x等于多少 用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+. X—0.25X+3=80%X怎么算? (7.5x-0.75=0.25*3)这道题怎么算? 8x-3=6.5x+7.5 (7.5-x)*3 2x=19. 解方程0.25(2x-1)-1=0.75(1-2x)2分之x-8分之3x-5=1+4分之3-2x 解方程 x-0.25x=3 x-0.25x=3求解 (X+3)/7=X/6+0.25