Question

7·x−(x−5) при x=-3.

Answer 1

Ответ:

-13

Пошаговое объяснение:

7•x-(x-5)

7•x-x+5

7x-x+5

6x+5

6•(-3)+5

-18+5

-13

Answer 2

To find the value of the expression $7x - (x - 5)$ when $x = -3$, you need to substitute $-3$ for $x$ in the expression and then simplify it.

$$7x - (x - 5) \quad \text{when} \quad x = -3$$

Substituting $-3$ for $x$:

$$7(-3) - ((-3) - 5)$$

Now, let's simplify the expression step by step:

$$= -21 - (-3 + 5)$$

$$= -21 - 2$$

$$= -23$$

So, the value of the expression $7x - (x - 5)$ when $x = -3$ is $-23$.