Answer:
-2x + 9
Explanation:
1. First, working from left to right and following PEMDAS, distribute the 3 into the parentheses:
Distribute is to multiply each number or variable in the parentheses by the outer number.
(3·x + 3·3) - 5x
2. Simplify inside the parentheses:
(3x + 9) - 5x
3. Now combine like terms:
3x - 5x + 9
which simplifies to,
-2x + 9