X+0.12x+(18-x)( 1+10%)=20
1个回答
1.12x+(18-x)*1.1=20
1.12x+19.8-1.1x=20
0.02x=0.2
x=10
相关问题
(X-X*20%-18-(X-X*20%-18)*10%=X*1/2-3(过程)
解方程:12*(x+y)=2160 (x+18)/(y+18)=(12x-20)/(12y+20)
1/9X10+1/10X11+1/11X12+1/12X13+…+1/17X18=
解方程 18:X=3:1 10:X=8:5 0.8X=0.12+4.8 75:X=5:4 3X=12÷0.5 1.5:X
0.02x/0.03+1=-0.18x+0.18/0.12-1.5-3x/2如题
这些解方程:x-6=15%x12 x-10%x=18 40%x+1/5x=15 25%x-5=60%x 5 3x+20%
1/x(x-1)+1/x(x+1)+1/(x+1)(x+20.+1/(x+9)(x+10)=11/12
x+1/10-x-1/5=1 x/12-2x-1/20=3x+4/8-
18.x-12-16.x-12=1
18一(1/15十1/12)X10