Dấu "." là dấu nhaan
x.(16+112+124+148+196+1192)=12
=> x . 1788 = 12
=> x= \(\frac{1}{149}\)
hk tốt!!(nhớ k cho mình na)
\(x\times\left(16+112+124+148+196+1192\right)=12\)
\(x\times1788=12\)
\(x=12:1788\)
\(x=\frac{1}{149}\)
x×(16+112+124+148+196+1192)=12
x×1778 =12
x= 12 : 1778
x= \(\frac{6}{889}\)
Vậy x= \(\frac{6}{889}\)
~~~hok tốt~~~
\(=16x+112x+124x+148x+196x+1192x=12\)
\(=\left(16x+124x\right)+\left(112x+148x\right)+\left(196x+1192x\right)=12\)
\(=140x+260x+1388x=12\)
\(=x\left(140+260+1388\right)=12\)
\(=1788x=12\)
\(\Rightarrow x=\frac{12}{1788}=\frac{1}{149}\)
