Question

Xy-6x+x+7y-xy если x=-3, y=-1

Answer 1

ху-6х+х+7у-ху= 7у-5х

7(-1)-5(-3)= -7+15=8

Answer 2

Xy-6x+x+7y-xy =
-3•(-1)–6•(-3)+(-3)+7•(-1)—(-3)•(-1) =
3–(-18)+(-3)+(-7)–3 =
21+(-10)–3 =
11–3=8
Ответ:8
Вроде бы так) Но на всякий проверь еще в калькуляторе <3

Answer 3

To evaluate the expression "Xy-6x+x+7y-xy" when x=-3 and y=-1, we simply substitute these values into the expression and perform the arithmetic operations.

Let's substitute x=-3 and y=-1 into the expression:

Xy - 6x + x + 7y - xy

= (-3)(-1) - 6(-3) + (-3) + 7(-1) - (-3)(-1)

Now, perform the arithmetic operations:

= 3 + 18 - 3 - 7 + 3

= 14

So, when x=-3 and y=-1, the expression "Xy-6x+x+7y-xy" evaluates to 14.