12.4x+7.6=1.4
12.4x+7.6=1.4
1.4x-x=9.8求x
24x+9.6x=84 14.3x-7.6x=33.5 7x+8x-10x=70
(X+X)+(X-X)+(X*X)+(X/X)=100
6.4x=4.4x+12.4
2.4x-1.4x-3x=5.2-8
解方程 x+1.4x=360
x+1.4x=108,解方程.
1.4x×0.9=x+52
0.3+0.3x=0.39 x= 2x-1.5x=7.6x x= 0.36x÷0.3=1.2 x=
解方程:(1)x-0.75x=12(2)2.8x+x=7.6(3)2.36x+2.64x=18(4)3.5x-1.5x=
1)7.6X-3.6X(6X-5)=4,求X 2)5X-2X(X-4)=11,求X