x/3=6/1 7/12x+1/4x=9/20 x/50-3=x/60+2
2个回答
x/3=1/6
x=1/6×3
x=1/2
7/12x+1/4x=9/20
5/6x=9/20
x=27/50
x/50-3=x/60+2
x/50-x/60=5
x/300=5
x=1500
相关问题
(1)x+20%x=3.6(2)[1/4]x+3=5.4(3)(1-25%)x=1.5(4)60%x-9=9.6.
1+2+3`````+9=.155/5+12-6=.155/3X2+60/4=.50/5X60/3=.
解方程 1 3 : 1 20 = 7 9 :x 8.4+40%x=128x+6x=7×12 3 4 x-1= 1 2 .
①27x-4x=34.5②3x2.8=4.3③12x-24=6④5.8+2x=20五6.9x-4.1=9.7⑥3.6x+
30-3(3-X)=4X 3X+12*6=15X+12 4X-2(50-X)=20 12(X-13)=10(X+3) 1
解方程 1/2x-28=50 x-2/7x=15/28 3x-1.2=3.6 x-20%x=7.2 0.9x+1.3x=
解方程 1/2x-28=50 x-2/7x=15/28 3x-1.2=3.6 x-20%x=7.2 0.9x+1.3x=
2(x+3)-5(1-x)=3(3-1) 4-3(2-x)=5x 4x-3(20-x)=6x-7(9-x) 4-3(2-
4x15/2= 12/5x8= 3/1x4/1= 9/8x10= 6x12/11= 9/2x5/3= 14/6x9/7=