Answer:
1/12
Step-by-step explanation:
1/2-[-1/4+2/3]
1/2-[-3/12+8/12]
1/2-[5/12]
1/2-5/12
6/12-5/12
1/12
Answer: The answer is D
Step-by-step explanation:
It's choice D.
Adding up the constants (8 and 4) gives you 12
Adding up the coefficients (3 and 7) gives you 10
Answer:

Explanation:

using associative property, separate

take common term, factorise

final answer
