Question

(2х+3)+(5) при х= -2

Answer 1

вот, а какой это класс?)

Answer 2

To evaluate the expression (2x + 3) + 5 when x = -2, you simply substitute -2 for x in the expression and then perform the arithmetic operations.

(2x + 3) + 5

Now, replace x with -2:

(2 * (-2) + 3) + 5

Now, perform the operations inside the parentheses first:

( -4 + 3 ) + 5

Now, perform addition:

(-1) + 5

Finally, perform the final addition:

4

So, when x = -2, the expression (2x + 3) + 5 equals 4.