\(2x -10 - [3x - 13 - (3 - 5x) - 4] =7\)
\(2x -10 - 3x + 13 + 3 - 5x + 4 =7\)
\(2x-3x-5x=10-13-3-4+7\)
\(-6x=-3\)
\(\frac{1}{2}\)
\(2x-10-\left[3x-13-\left(3-5x\right)-4\right]=7\)
\(\Leftrightarrow2x-10-\left(3x-13-3+5x-4\right)=7\)
\(\Leftrightarrow2x-10-3x+13+3-5x+4=7\)
\(\Leftrightarrow-6x=10\)
\(\Leftrightarrow x=-\frac{5}{3}\)