Answer:
6x
Explanation:
To make this question easier, let's first get rid of the "x" since all of the terms share the same variable:
4-5+7
Using the order of operations:
Parenthese
Exponents
Multiplication & Division: Left to right
Addition & Subtract: Left to right
-1+7=6
Then we can add the "x" back on and we get
6x