X+25%X=8 2/3X+3/4X=1
2个回答
x+25%x=8
x(1+0.25)=8
1.25x=8
x=8/1.25
x=6.4
2/3x+3/4x=1
(8/12+9/12)x=1
x=12/17
相关问题
3.84:2.4=x:1/4 x:0.75=20.25:1/8 3.6:4/3=1.8:x x:0.75=2:1.25
3X+8=2X+12 25%X+4.2=15%x+1.8 (1+15%)X-25%X=0.81
解方程:(1)4+x=5.3 (2)8x-3x=25
(x-10)^2=3 (x+5)^2=8 (x-1)^2=25 4(x+3)^2=9
1.4X8-2x=6 3x/5=4.8 6x-1.28X3=0.06 30/x+25=85 4
9(x-3)²=25 x²+3x-1=0 (2x-3)²-2(3-2x)=8 x(x-1)
1/2:1/5=1/4:x0.8:4=x:83/4:x=3:1236/x=54/32/9=8/x1.25:0.25=x:
求未知数x值.①x-0.8x+6=16②6.5:x=3.25:4③3[4/5]x+2.4x=[1/25].
求未知数x. [5/6]x-0.4=3.4 4(x+0.2)=2.4 [5/8]:x=0.25:3 [1.25/0.25
解方程,7个3x+6=4x+4 x=5=25-8x 7+2x=19-4x 8x-3-3x=4x+1 (x+0.9)=(x