Verified Answer :

\(8(4x-5)-12=20x-10\\ 32x-40-12=20x-10\\ 12x=42\\ x=\frac{42}{12}=\frac{7}{2}\)

\(8(4x - 5)-12=20x-10\)

\(32x - 40-12=20x-10\)

\(32x -52=20x-10\)

\(32x -52 -20x=-10\)

\(12x -52=-10\)

\(12x =-10 +52\)

\(12x =42\)

\(x= \frac{42}{12}\)

\(x = \frac{7}{2}\)

\(x=3 \frac{1}{2}\)  ≈ 3.5