Answer:
-2 1/4z +1/4
Explanation:
3/4 - 4z +5/4 z- 1/2 + 1/2 z
Put like terms near each other
3/4- 1/2 - 4z +5/4 z+ 1/2 z
We need to get common denominators to combine
First the constant terms
3/4 - 1/2*2/2
3/4 - 2/4 = 1/4
Then the variable terms
-4z *4/4 +5/4z + 1/2z *2/2
-16z/4 + 5/4z +2/4z
-9/4z
Changing from an improper fraction to a mixed number
-2 1/4 z
-2 1/4z +1/4