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Nookie1986 [14]
3 years ago
12

What is incorrect about this method?

Mathematics
1 answer:
iren [92.7K]3 years ago
3 0
Hello,

This method is correct!
\dfrac{4}{5} *x+ \dfrac{7}{2} = \dfrac{3}{10} \\
==\textgreater\  \dfrac{5}{4}*( \dfrac{4}{5} *x+ \dfrac{7}{2}) = \dfrac{5}{4}* \dfrac{3}{10} \\

==\textgreater\ \dfrac{5}{4}* \dfrac{4}{5} *x+ \dfrac{5}{4}*\dfrac{7}{2}=\dfrac{5}{4}* \dfrac{3}{10} \\

==\textgreater\ x+ \dfrac{35}{8} = \dfrac{3}{8} \\

==\textgreater\ x+ \dfrac{35}{8}-\dfrac{35}{8} = \dfrac{3}{8} -\dfrac{35}{8}\\

==\textgreater\ x = -\dfrac{32}{8}\\
Maybe\ this\ line \ is\ missing\\
x=-4



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