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1/8(x-5)=75%解方程

1/8(x+0.5)= 75% 等式两边乘以8得 x+0.5= 0.75*8 x= 6-0.5 = 5.5

2:4(x—1/4)=5/8 解方程要过程 解:2x18=5(X-1/4) 36=5X-5/4 36+5/4=5X 5X=149/5 X=149/25

x-1/5x=8/5 解:4/5x=8/5 x=8/5*5/4 x=2 行家正解,不明白可以追问!祝您学习进步 满意请点击下面的【选为满意回答】按钮,O(∩_∩)O谢谢

八分之一×(x+0.5)=75% 解:x+0.5=75%÷1/8 x+0.5=6 x=6-0.5 x=5.5

如图

X-9/11=3/7 7(x-9)=33 X-9=33/7 X=33/7+9 X=96/7

变形得到1/3[1/(x-1)-1/(x+2)+1/(x+2)-1/(x+5)+1/(x+5)-1/(x+8)+1/(x+8)-1/(x+11)]=[1/3(x-1)]-1/24 所以1/(x-1)-1/(x+11)=1/(x-1)-1/8 即1/(x+11)=1/8 解得:x=-3. 检验:当x=-3时,(x-1)(x+2)(x+5)(x+8)(x+11)≠0, ∴x=-3是原分式方程的解. ∴...

不懂

解析:(x+0.5)/8=75%(x+0.5)/8=3/4x+0.5=6x=5.5

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