13x-(4.5X+2.9)=3.4*0.5+0.5X
当x满足( )时,|1.5x-0.5|+|2.5x-0.5|+|3.5x-0.5|+|4.5x-0.5|+|5.5x-0
X=0.5X-12+0.5[X-(0.5X-12)]+19 X=0.5X-12+0.5[X-(0.5X-12)]+19
4(x-3)=2x 8x+0.5=4x+4.5 4x+20=6x-10 解方程
先化简再求值先化简再求值:(x-x/x+1)(x+1/x^2+4x+4)(x^2-4/x^2-2x),其中x=-0.5
求未知数x.(1)(4.5-x)×7=17.5(2)5.5x-1.3x=12.6(3)0.8x+0.5×13=10.5(
6X-(360X-0.5X)=2×(360X-0.5X)
(x-2)+(x+2)+0.5x+2x等于多少个x?
150.5x -4x +0.5x =7
x+13%x-28%x=3.4
4X+0.5X=13.5X
解方程:2+x=2x+1 0.5x=3.4+x 4-0.5x=-x
5x+27=30+0.5x 100-4(8-3x)=200 3.5x-1.2=2.7x+3 7(x