Question

6*(0,4x-3)-4,5*(x=2) при х= 1 2\3

Answer 1

2,4x-18-4,5x-9=-27-2,1x= -27-2,1 * 1 2/3= -27-2,1 * 5/3 = -27-0,7*5= -27-3,5=
=-30,5

Answer 2

Я сделала логически,потому что во второй скобке что то непрвельно я там сделала -. Решение на фото

Answer 3

It seems there might be a typo in the expression you provided. I'll do my best to interpret it and provide the calculations.

Let's try to correct the expression first: 6*(0.4x - 3) - 4.5*(x + 2)

Now, we can evaluate the expression for three different values of x: 1, 2/3, and 2.

1. x = 1: 6 * (0.4 * 1 - 3) - 4.5 * (1 + 2) 6 * (0.4 - 3) - 4.5 * 3 6 * (-2.6) - 13.5 -15.6 - 13.5 = -29.1

2. x = 2/3: 6 * (0.4 * (2/3) - 3) - 4.5 * ((2/3) + 2) 6 * (0.8/3 - 3) - 4.5 * (8/3) 6 * (-8/3) - 4.5 * (8/3) -16 - 12 = -28

3. x = 2: 6 * (0.4 * 2 - 3) - 4.5 * (2 + 2) 6 * (0.8 - 3) - 4.5 * 4 6 * (-2.2) - 18 -13.2 - 18 = -31.2

So, when x takes the values 1, 2/3, and 2, the expression evaluates to -29.1, -28, and -31.2, respectively.