Question

40 - 2x . (3x - 1 ) = 5

Answer 1

\(40-2x.\left(3x-1\right)=5\\ \Leftrightarrow2x.\left(3x-1\right)=35\\ \Leftrightarrow\left[{}\begin{matrix}2x=35\\3x-1=35\end{matrix}\right.\\ \Leftrightarrow\left[{}\begin{matrix}x=\dfrac{35}{2}\\x=12\end{matrix}\right.\)