Question

10X-4 (-4+2X)=3 (-2X+4)-20

Answer 1

$10x-4(-4+2x)=3(-2x+4)-20 \\ \\ 10x+8-8x=-6x+12-20 \\ \\ 10x-8x+6x=12-20-8 \\ \\ 16x-8x=12-28 \\ \\ 2x=-16 \\ \\ x=- \frac{16}{2} \\ \\ x=-8$