x-{x-(50%x+12) }×50%+8-(50%x+12)=18
x-{x-(50%x+12) }×50%+8-(50%x+12)=18
14X-8X=12 20X-50=50 28+6X=88 24-3X=3 99X=100-X X+3=18 X-6=12
求文档:解方程:x-x/12-x/7-x/8-x/4-x/20-x/5=30+120+300+50
20%x+[25*(20%x)]+12=50%x+2
问18x+37=51.4 x=?9x-7x=50 x=?5x+6x=16.94 x=?12x/4=24 x=?
x-(50%+12)-[x-50%x+12]50%+8=18的答案等于多少
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
2x-10=15x+30,6x-6=6x+2,9-3x=2x-8,5x=9x-50 ,5y-5=12-6y,15x-9=
x-1)(X-2)(x-3)...(x-50)+x(x-2)(X-3)...(X-50)+...+x(x-1)(x-2)
x/2+x/8+x/12+x/20=1
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550