Use the distributive property to write 23y - (7x-2y) + x without parentheses.

Easy,

23y - (7x-2y) + x

There is an imaginary 1 in front of the parentheses, making it,

23y-1 (7x-2y) + x

Now, distribute the 1.

-1*7x = - 7x

and

-1*-2y = 2y

Leaving your problem looking like ...

23y-7x+2y+x

Combine your apples and oranges ...

25y-6x

Thus, your answer.