Answer:
x = 10
Step-by-step explanation:
3(a-b) and 3a-3b. Equivalent
2a(2+b) and 4ab. Not equivalent
Answer:
C
Step-by-step explanation:
-2 + 7 = 5
Step-by-step explanation:
The reason is because it is not just 6 it is - 6 so when there are two negative numbers they don't subtract they add if it was 6n then it was to be subtracted
21m - 11n + 2m
23m - 11n