Question

12,84+(−x)=−2 4/5. дам 15 баллов

Answer 1

Ответ:

Х=15,64

Пошаговое объяснение:

Answer 2

Ответ:

Пошаговое объяснение:

12,84 - х = -2. 4/5

12,84 - х = -14/5

12,84 - х = -2,8

х = 12,84 - (-2,8)

х = 12,84 + 2,8

х = 15,64

Answer 3

Let's solve this equation step by step:

$12.84 + (-x) = -\frac{2}{5}$

First, let's get rid of the decimal by multiplying the entire equation by 5 to get rid of the fraction:

$5 \cdot 12.84 + 5 \cdot (-x) = 5 \cdot (-\frac{2}{5})$

This simplifies to:

$64.2 - 5x = -2$

Now, let's isolate the term with $x$ by moving the constant term to the other side:

$-5x = -2 - 64.2$

Combine the constants:

$-5x = -66.2$

Finally, solve for $x$ by dividing both sides by -5:

$x = \frac{66.2}{5}$

I'll calculate that for you. You'll get $x = 13.24$. If you have any more equations or questions, feel free to ask! And thank you for the 15 points!