17/50=X%

x+ x+(x*50%)=1.5X? 17/50=X% 5（x²+17)-6(x²+2x)=0 (50-x)(30+2x)=21005（x²+17)-6(x²+2x)=0(50-x)(30+2x)=2100 解方程50%x+30%x=8 X-20％x=40 17-150%x=6.5求列式! x+3x+x-2+x+x+50%x=188 求x (x+7)+x+3x=17 50X=200+X*X 30%x=50%x-20x x+x+17=27.5% 50％x+x=20 x+30％x=52 (x+x+23+x+50)=3x 怎么解 50x(x-1)+60x(x-4)=5100 (x+1)+(x+2)+(X+3).+(x+50)=1325 x-50%x=100 90-x=50+x x+50%x=400 0.4X=X-50 (x-10)/(x-11)+(x-16)/(x-17)=(x-12)/(x-13)+(x-14)/(x-15)快,急用