求未知数x,4x=243-1点6x 4x-8+20x-4=5-10x

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求未知数x,4x=243-1点6x4x-8+20x-4=5-10x求未知数x,4x=243-1点6x4x-8+20x-4=5-10x求未知数x,4x=243-1点6x4x-8+20x-4=5-10x4

求未知数x,4x=243-1点6x 4x-8+20x-4=5-10x
求未知数x,4x=243-1点6x 4x-8+20x-4=5-10x

求未知数x,4x=243-1点6x 4x-8+20x-4=5-10x
4X=243-1.6X
5.6X=243
X=43.4
4x-8+20x-4=5-10x
34X=17
X=0.5