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x-0点52x等于9.6解方程

x=0.52x=9.6 0.48x=9.6 x=20

x²-52x+100=0 x²-52x+100 =x²-52x+(52/2)²-(52/2)²+100 =(x-26)²-576=0 ∴(x-26)²=576 x-26=±24 x=50或x=2

(1)x+18=52, x+18-18=52-18, x=34,(2)x÷1.2=0.5,x÷1.2×1.2=0.5×1.2, x=0.6,(3)2.5x=1, 2.5x÷2.5=1÷2.5, x= 2 5 , (4)x-4.8=1.6, x-4.8+4.8=1.6+4.8, x=6.4.

x+52x=186 解:53x=186 x=186/53

52x+70x=52(x+4)+90x (122-52)x=208+90x x=-(208÷20) x=-10.4

64x+52(5-x)=296 64x+260-52x=296 12x=36 x=3

2x加上52x=162解方程怎么计算 解: 54x=162 x=162÷54 x=3

64X+52*5-52X=296 64X-52X=296-52*5 12X=36 X=3

64x+52(5-x)=296 64x+260-52x=296 12x=296-260=36 x=3

18-2.5x=5.5 2.5x = 18-5.5 = 12.5 x = 12.5/2.5 = 5 x+0.3x=52 1.3x = 52 x = 52/1.3 = 40 x-0.4x=15 0.6x=15 x=15/0.6 = 25 x-0.1x=1 0.9x = 1 x = 1/0.9 = 10/9 -1/8x+1/3x=1/4 5/24x = 1/4 x = 1/4*24/5 = 6/5

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