Answer: 49x
Step-by-step explanation:
first, i rewrite the equation, removed the parentheses, and multiplied it all out.
(-5-4)x x (-5) + 7x - 3x
then, i calculated it.
-9x x (-5) + 7x - 3x
then, i multiplied and calculated again.
45x + 7x - 3x = 49x
