7.8-3.2x=1.8x.
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7.8-3.2x=1.8x.
7.8-3.2x=1.8x.
7.8-3.2x=1.8x.
7.8-3.2x=1.8x.
3.2x+1.8x=7.8
7.8x-2.4x=1.x=
2x-1.8=x+2.4 x是多少?
X-35%X=7.8
x-1.8=4.6 4+0.2x=30 8x-2x=25.2
解方程x-0.25x=75 3.2x+0.5x=18.
2x-3=5x-27+9x(方程) 3.2x+6.8=13.2(方程) 5x+24-2x=14x+2x-3=5x-27+9x(方程)3.2x+6.8=13.2(方程)5x+24-2x=14x+2(方程)
6.8+12÷x=10.8,14-0.5(x+3)=7.8,3.5x-3x-10=8,7.9-5x=7.8÷210x-20=6x,10+6x=8x,2(x+54)=8x,25-2x=5+2x
3.2-x= 1.23
x-3.5×0.8=7.8 x=?
解方程,怎么写(1)50-x=8.09 (2)5X-16=40+3x (3)2(X-12)+0.8=6.8 (4)x÷2+3.5=7.5x(5)4.8-4x=1.2+5x(6)12.5x-0.41=8.4x(7)3.2x+2.4=1.8x+3.8(8)4.5(2x+6)÷2=18(9)21.6-3x=x+1.6(10)2(x-12)+0
1.8:x=0·3:21-x
,四道x-0.52x=3.2×0.15 4x-2x=3×18 9.5x-3x=5.6+7.4 1.36=0.35x+0.5x
6x-2x+3x-3x-x=1.2×3
x+3.2=4.6 x-1.8=4 求方程
x(2x-1)=-3x(x+1)+5x²+3
x+2/x+1=5/x-1/x(x+1) 求化简!