Question

(6x-6)+(- x-x-3x )если x =2,3

Answer 1

Ответ:

-3.7

Пошаговое объяснение:

$6(x - 1) + ( - 5x) = 6(x - 1) - 5x = 6(2.3 - 1) - 5 \times 2.3 = 6 \times 1.3 - 11.5 = 7.8 - 11.5 = - 3.7$

Answer 2

To evaluate the expression (6x - 6) + (-x - x - 3x) for x = 2 and x = 3, we substitute the values of x into the expression and simplify it.

For x = 2: (6(2) - 6) + (-2 - 2 - 3(2)) = (12 - 6) + (-2 - 2 - 6) = 6 + (-2 - 2 - 6) = 6 + (-10) = -4

For x = 3: (6(3) - 6) + (-3 - 3 - 3(3)) = (18 - 6) + (-3 - 3 - 9) = 12 + (-3 - 3 - 9) = 12 + (-15) = -3

Therefore, when x = 2, the expression evaluates to -4, and when x = 3, the expression evaluates to -3.