Answer:

Step-by-step explanation:
Hello,
let's find a and b reals so that


we identify the terms in 
9 = 3a
we identify the terms in x
-18 = 3b + a
we identify the constant terms
-7 = b
so ti goes with a = 9/3 = 3, b = -7
so we can write

so 
hope this helps
Answer:
∠ACD= ∠BAC ( reason: CPCTC)
12 4/9 + 1 2/9=13 6/9+3 5/9=16 11/9 that answer is farther simpled 17 2/9
so the final answer is 17 2/9
Answer:
1 is 22; 2 is 19; 3 is 16; 4 is 13; 5 is 10
Step-by-step explanation:
Give me that crown again