Answer:
6
Step-by-step explanation:
Plug in 3 into both expressions
Then add those results
2(3)+21=6+21=27
3-24 =-21
-------
6 is the sum of 27 and -21
Answer:
Groot
Step-by-step explanation:
Answer:1st same 2nd same 3rd diffrent 4 the same
Step-by-step explanation:
BC means B times C
B=-4
C=2
B times C=-4 times 2=-8