Question

2) 31,28 - (m +4,2) = 15,093.

Answer 1

Ответ:

31,28-m-4,2=15,093

27,08-m=15,093

-m=15,093-27,07

-m=-11,987

Answer 2

To solve the equation $31.28 - (m + 4.2) = 15.093$, you can follow these steps:

1. Start by simplifying the equation within the parentheses by adding $4.2$ to both sides of the equation:

   $31.28 - 4.2 - (m + 4.2) = 15.093 - 4.2$

   This simplifies to:

   $27.08 - (m + 4.2) = 10.893$

2. Next, isolate the term $-(m + 4.2)$ by adding it to both sides of the equation:

   $27.08 - (m + 4.2) + (m + 4.2) = 10.893 + (m + 4.2)$

   When you add $-(m + 4.2)$ and $(m + 4.2)$ on the left side, they cancel out:

   $27.08 = 10.893 + (m + 4.2)$

3. Now, subtract $10.893$ from both sides of the equation to isolate $m$:

   $27.08 - 10.893 = 10.893 - 10.893 + (m + 4.2)$

   This simplifies to:

   $16.187 = m + 4.2$

4. Finally, subtract $4.2$ from both sides to find the value of $m$:

   $16.187 - 4.2 = m + 4.2 - 4.2$

   $11.987 = m$

So, the solution to the equation $31.28 - (m + 4.2) = 15.093$ is $m = 11.987$.