Question

0,47x-1,14x=1,65
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Answer 1

          
$0,47x - 1,14x = 1,65 \\ \frac{47}{100}x - \frac{114}{100}x = \frac{165}{100} \\ \\ \frac{47-114}{100}x = \frac{165}{100} \\ \\ \frac{-67}{100}x = \frac{165}{100} \\ \\ x = \frac{165}{100}:\frac{-67}{100} =\frac{165}{100}*\frac{100}{-67} = \boxed{- \frac{165}{67}} \\ Verificare: \\ 0,47*( - \frac{165}{67})-1,14( - \frac{165}{67})=(0,47-1,14)( - \frac{165}{67})= \\ \\ =(-0,67)(- \frac{165}{67})= \frac{0,67*165}{67}= \frac{0,67*165}{0,67*100}= \frac{165}{100}=1,65$