Answer:
Step-by-step explanation:
Blank 1 = " x "
Blank 2 = " 3 "
Add like terms
2+4i +7 +11 i =
2+7 + 4i+11i =
9+15i
Answer:
11
Step-by-step explanation:
brainliest me pls
Answer:
k =3
Step-by-step explanation:
-3k-2k+12 = 2k-9
-5k+12 = 2k -9
Add 5k to each side
-5k+5k+12 = 2k+5k-9
12 = 7k-9
Add 9 to each side
12 +9 = 7k-9+9
21 = 7k
Divide each side by 7
21/7 = 7k/7
3 =k
