Question

(x+7) (-2x-9) =0 решить уравнение срочно​

Answer 1

Ответ:

-3х-9х-14х-63=0

-26х=63

26х=-63

х=-63:26

х=-2

Пошаговое объяснение:

.

Answer 2

Ответ:

х+7=0

-2х-9=0

х=-7

х=-9\2

Answer 3

Solving the Equation (x + 7) + (-2x - 9) = 0

To solve the equation (x + 7) + (-2x - 9) = 0, we can follow these steps:

1. Combine like terms on the left side of the equation. 2. Solve for the variable x.

Step 1: Combine Like Terms

The given equation is (x + 7) + (-2x - 9) = 0. To solve for x, we need to simplify the left side of the equation by combining like terms.

(x + 7) + (-2x - 9) = 0 x + 7 - 2x - 9 = 0 (x - 2x) + (7 - 9) = 0 - x - 2 = 0

Step 2: Solve for x

Now that we have the simplified equation -x - 2 = 0, we can solve for x.

Adding 2 to both sides of the equation: -x = 2

Multiplying both sides by -1 to isolate x: x = -2

Conclusion

The solution to the equation (x + 7) + (-2x - 9) = 0 is x = -2.