4{[4(x-1)+3]-[2(2x-1)+3]} = ?

4{[4(x-1)+3]-[2(2x-1)+3]} = ?

$$\small{\text{$ 4 \cdot\{\,[\,4(x-1)+3\,]-[\,2(2x-1)+3\,]\,\} $}} \\
\small{\text{$ = 4 \cdot[\,(4x-4+3)-(4x-2+3)\,]$}} \\
\small{\text{$ =4 \cdot(\, 4x-4+3-4x+2-3\,)$}} \\
\small{\text{$ =4 \cdot(\,-4+2\,)$}} \\
\small{\text{$ =4 \cdot(-2)$}} \\
\small{\text{$ =-8 $}}$$