Will mark brainliest!
(problem below)

Second equation

To solve this, you need to combine like terms. I will use the answer, the second equation, as an example.

1/3x-1/4y-4/5+1/3x-1/4y

Let’s first combine the numbers with x as a variable. These numbers are 1/3 and 1/3.

1/3x-1/4y-4/5-1/4y

2/3x-1/4y-4/5-1/4y

Now we figured out that those combine to 2/3x, which we already know is the same as the original expression. Since the other expressions might also simplify to 2/3x, let’s now combine the numbers with y as a variable

2/3x-1/4y-4/-1/4y

2/3x-2/4y-4/5

-2/4y can be simplified. Let’s do this now by dividing it by 2 and changing it to -1/2y

2/3x-2/4y-4/5

2/3x-1/2y-4/5

The expression simplifies to the same as the original

Hope this helps comment below for more questions :)

Subtracting is the opposite of adding