Question

9x=21+2x решите пожалуйста​

Answer 1

9x=21+2x

9x-2x=21

7x=21

x=21/7=3.

Answer 2

Ответ:

Пошаговое объяснение:

9х = 21 + 2х

9х - 2х = 21

7х = 21

х = 21 : 7

х = 3

Answer 3

Solving the Equation 9x = 21 + 2x

To solve the equation 9x = 21 + 2x, we can use basic algebraic principles to isolate the variable x.

First, let's subtract 2x from both sides of the equation: 9x - 2x = 21 This simplifies to: 7x = 21

Now, we can solve for x by dividing both sides of the equation by 7: 7x / 7 = 21 / 7 This simplifies to: x = 3

So, the solution to the equation 9x = 21 + 2x is x = 3.