x减0.1x=1.80目录

Tosolvetheequationx-0.1x=1.80,wecancombineliketerms:0.9x=1.80Next,wecanisolatexbydividingbothsidesoftheequationby0.9:x=1.80/0.9x=2Therefore,thevalueofxthatsatisfiestheequationisx=2.

x减去零点壹x等于壹点零捌,求x:
x-0.1x=0.08
(1-0.1)x=0.08
0.9x=0.08
x=0.08/0.9
=8/90
x=4/45

x一0.1x=1.8
0.9x=1.8
x=1.8÷0.9
x=2
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x(1-10)=1.80
x=1.80/(1-10)=1.80/0.90=2