Answer
See below.
Work Step by Step
First, write any subtraction as an addition of the additive opposite number,
subtracting $2y$ becomes $+(-2y)$
subtracting $7$ becomes $+(-7)$
... Rewrite the expression as a sum
$=5x+(-2y)+(-7)$
Name the terms of the sum:
$5x,\ -2y$, and $-7$
