Hello! And thank you for your question!
For this to see which is in simplified form. We will check them. All four!
1n + 2.9n (not simplified):
For this you can simplify 1 x n to n:
n + 2.9n
Simplifies to:
3.9n
4w - 5 (simplified):
For this equation we can not combine like terms anymore. So this is simplified.
-2 + 1.4m + 0.5 (not simplified):
For this we can combine like terms:
1.4m + (-2 + 0.5)
Then simplify:
1.4m - 1.5
9j - 3 - j (not simplified):
First we can combine like terms:
(9j - j) - 3
Then Simplify:
8j - 3
Final Answer:
4w - 5
