Question

1,8-0,9х=4,5-0,8х+7,2​

Answer 1

Ответ:

Смотри решение на фото

Answer 2

Ответ:

1,8-0,9х=4,5-0,8х+7,2

0,8х-0,9х=4,5+7,2-1,8

-0,1х=9,9

х=-99

Answer 3

To solve for the value of x in the equation 1.8 - 0.9x = 4.5 - 0.8x + 7.2, you'll want to isolate the x variable on one side of the equation. Here's how you can do it step by step:

1. Start by moving all the terms containing x to one side of the equation. You can do this by adding 0.9x to both sides of the equation:

   1.8 - 0.9x + 0.9x = 4.5 - 0.8x + 7.2 + 0.9x

2. This simplifies to:

   1.8 = 4.5 - 0.8x + 7.2 + 0.9x

3. Combine like terms on the right side of the equation:

   1.8 = 11.7 - 0.8x + 0.9x

4. Now, simplify the equation further by combining the x terms on the right side:

   1.8 = 11.7 + (0.9x - 0.8x)

5. Subtract 0.8x from 0.9x to get 0.1x:

   1.8 = 11.7 + 0.1x

6. Next, isolate the 0.1x term by subtracting 11.7 from both sides:

   1.8 - 11.7 = 0.1x

7. Calculate the difference on the left side:

   -9.9 = 0.1x

8. Finally, solve for x by dividing both sides by 0.1:

   x = -9.9 / 0.1

9. x = -99

So, the solution to the equation is x = -99.