-6(0,5x-1,5)-4,5x-8 при x=2\3

Question

-6(0,5x-1,5)-4,5x-8
при x=2\3

Answer 1

-6(0,5x-1,5)-4,5x-8 = -3х + 9 - 4,5х - 8 = -7,5х +1 = -7,5 * 2/3 + 1 = -75/10 * 2/3 + 1 = 6