x/0.7-(0.17-0.2x/0.03)=1 A.x/7-(17-2x/3)=1 B.10x/7-(17-2x/3)=1 C.10x/7-(17-20x/3)=10D.10x/7-(17-20x/3)=1 选哪个?变式.）祥细过程.

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x/0.7-(0.17-0.2x/0.03)=1A.x/7-(17-2x/3)=1B.10x/7-(17-2x/3)=1C.10x/7-(17-20x/3)=10D.10x/7-(17-20x/3)=

x/0.7-(0.17-0.2x/0.03)=1 A.x/7-(17-2x/3)=1 B.10x/7-(17-2x/3)=1 C.10x/7-(17-20x/3)=10D.10x/7-(17-20x/3)=1 选哪个?变式.）祥细过程.
x/0.7-(0.17-0.2x/0.03)=1 A.x/7-(17-2x/3)=1 B.10x/7-(17-2x/3)=1 C.10x/7-(17-20x/3)=10
D.10x/7-(17-20x/3)=1 选哪个?变式.）祥细过程.

x/0.7-(0.17-0.2x/0.03)=1 A.x/7-(17-2x/3)=1 B.10x/7-(17-2x/3)=1 C.10x/7-(17-20x/3)=10D.10x/7-(17-20x/3)=1 选哪个?变式.）祥细过程.
D
x/0.7=10x/7
0.17-0.2x/0.03=17-20x/3

D
x/0.7=10x/7
0.17-0.2x/0.03=17-20x/3

这个题有问题吧，正确答案是10x/7-（0.17-20x/3）=1
x/0.7=10x/7
0.17-0.2x/0.03=0.17-20x/3
以上第一个式只是上下同乘以10而第二个式只是对分数上下同乘100，与0.17没有关系

0.7/x-0.03/0.17-0.2x 解方程：x/0.7-0.17-0.2x/0.3=1 0.7/x - 0.03/0.17-0.2x =1 解方程解方程x/0.7-0.3/0.17-0.2x=1 0.7分之x-0.03分之0.17-0.2x=1 x/0.7-1=(0.17-0.2x)/0.03 x/0.7-（0.17-0.2x）/0.03=1 x/0.7-0.17-0.2x/0.03=1 x/0.7-0.17-0.2x/0.03=1 x/0.7—0.17—0.2x/0.13=1 x/0.7-(0.17-0.2x)/0.13=1 X/0.7-（0.17-0.2x）/0.03=1 X/0.7-0.17-0.2x/0.03=1 解方程：x/0.7-0.17-0.2x/0.03=1(2)2x+1/6+x-1/3=1 X/0.7-【0.17-0.2x】/0.03等于1,起X的值? 0.7/x-0.03/（0.17-0.2x）=1（求x,） X/0.7-【0.17-0.2x】/0.03等于1,起X的值? 1) （2x+1/3）=2- (x-2/2) 2) 2(x-1)/3=x-1 3) 1+(3-x/2)=(x+4/3)-2 4）（x/0.7)-(0.17-0.2x/0.03)=1