Question

А) 58,2 - x - 42,8 = 18,6

Answer 1

-х=18,6-58,2+42,8
-х=3,2
х=3,2

Answer 2

To solve for the variable x in the equation $58.2 - x - 42.8 = 18.6$, follow these steps:

Step 1: Combine like terms on the left side of the equation. $58.2 - x - 42.8 = 18.6$ $15.4 - x = 18.6$

Step 2: Subtract 15.4 from both sides of the equation to isolate the variable x. $15.4 - x - 15.4 = 18.6 - 15.4$ $-x = 3.2$

Step 3: Multiply both sides of the equation by -1 to solve for x. $x = -3.2$

The solution to the equation $58.2 - x - 42.8 = 18.6$ is $x = -3.2$.