Ta có: \(6x-5.\left(x-7\right)=\left(27-514\right)-\left(486-73\right)\)
\(\Leftrightarrow6x-5x+35=-487-413\)
\(\Leftrightarrow x=-900-35\)
\(\Leftrightarrow x=-935\)
Vậy \(x=-935\)
6x-5(x-7)=(27-514)-(486-73)
=>6x-5x+35=-487-413
=>x=-487-413-35
=>x=-935
vậy x=-935