Question

4(0,5x-6)-14x+21 при x=- 1/3 !!!!!!!!!

Answer 1

$2x - 24 - 14x + 21 \\ \\ - 12x - 3 \\ \\ - 12 \times ( - \frac{1}{3} ) - 3 \\ \\ 4 - 3 = 1$

Answer 2

2x-24-14x+21=-12x-3=-3(x+1)
-3(-1/3+1)=-3*2/3=-2