Question

9,22+(−x)= −2 целых 4 пятых

Answer 1

9.22-х=-2.8

-х=-2.8-9.22

-х=-12.02 |*(-1)

х=12.02

Answer 2

9.22-х=-2 4/5
-х= -2.8-9.22
-х= -12.02| :(-1)
х= 12.02
Ответ: х=12.02

Answer 3

To solve the equation 9 + 22 - x = -2 4/5, we need to isolate the variable x on one side of the equation. Let's go step by step:

1. Combine the constants on the left side: 31 - x = -2 4/5

2. To eliminate the fraction, convert the mixed number -2 4/5 to an improper fraction: -2 4/5 = - (2 * 5 + 4) / 5 = - (10 + 4) / 5 = - 14 / 5

3. The equation becomes: 31 - x = -14/5

4. To isolate x, we'll move the constant term (31) to the other side of the equation by subtracting it from both sides: -x = -14/5 - 31

5. To get rid of the negative sign on the left side, we can multiply both sides by -1: x = 14/5 + 31

6. Now, let's add the two fractions together. To do that, find a common denominator, which is 5: x = (14 + 5 * 31) / 5 x = (14 + 155) / 5 x = 169 / 5

So, the solution for the equation is: x = 169 / 5

However, this is an improper fraction, and we can simplify it further: x = 33 4/5

Therefore, the value of x that satisfies the equation is 33 4/5.