Question

-6*(0,5х-1,5)-4,5х-8 при,х=2/3

Answer 1

-6*(0,5x - 1,5) - 4,5x - 8 = - 3x + 9 - 4,5x - 8 = - 7,5x + 1
Если $x = frac{2}{3} , - 7,5 * frac{2}{3} + 1 = - frac{15}{3} + 1$$= - 5 + 1 = - 4$