Question

2х+2,5+х при х=3 найдите значение выражения

Answer 1

3x+2.5 x=3

x=3*3=9

9+2.5=11.5

Answer 2

Ответ:

2*3+2.5+3=6+2.5+3=11.5

Answer 3

To find the value of the expression 2x + 2.5 + x when x = 3, substitute the value of x into the expression and then perform the arithmetic:

Let's plug in x = 3:

2(3) + 2.5 + 3

Now, perform the calculations:

6 + 2.5 + 3 = 11.5

So, the value of the expression 2x + 2.5 + x when x = 3 is 11.5.