3.2x+1.8x=7.8
7.2x-3.2x-7.8=12.
(X+X)+(X-X)+(X*X)+(X/X)=100
X-35%X=7.8 X+160%X=39
7.8X-X=14.
x+180%x=3.2
1.8x-x=17.
解方程 x+3.2=6.4 x-1.8=4 x-2=15 1.6x=6.4 x/7=0.3 x/3=2.1
解x+3.2=4.6 x-2=15 x+0.3=1.8 3+x=5.4 x-1.5=4 x-6=7.6
9.1+1.8x=19.2-3.2x怎么解方程
x+x=x+15
求x 的值.x +3.5x =9.9;4.25x -x =4.55;10x -2.7x =58.4;6.8x +3.2x
解方程:1.x/x+1-1=3/(x+1)(x-2) 2.3/x+2+1/x=4/x²+2x 3.2/3+x/