求未知数x (12%) (1)3:8 = x:2.4 (2)x:5 = :0.5 (3) :x = 6
求未知数x (12%) (1)3:8 = x:2.4 (2)x:5 = :0.5 (3) :x = 6
x-x/5=2.4 (求未知数x) 12÷5%x=8 4x+x=12.5
求未知数:8(3x-6)=6(4x-7)-3(2x+1)
3X+2=X+20求X Y未知数
求未知数x 16:x=0.75:8分之15 3(2x-1)+12=39
求满足方程3x(3x-3)-(4-2x)x=(4x-1)*2x的未知数x的值
求未知数x:3/5:x=6
6(x-1)=7(x-3)求未知数
求未知数x.(1)(4.5-x)×7=17.5(2)5.5x-1.3x=12.6(3)0.8x+0.5×13=10.5(
求未知数x1.X-5/7X=1/14 2.X×(5/6+0.625)=7/203.2/3X+0.75X=1/6 4.6×
5(X+2)-3(X-1)=32 求未知数X
5/3x=2/1x+7 求未知数x的值