B. (9+4i)+(-1-7i)
This is because when you add the terms, the 9 becomes an 8 and the 4i becomes a negative 3i.
Step-by-step explanation:
5x-6+7x+18=180
12x=180+6-18
12x=168
168÷12=14
X=14
for y
3y+11=7x+18(7×14+18)
3y+11=116
3y=116-11
3y=105
y= 35
Whats the question? its not there
Answer:
I'm sorry if i'm wrong but i think Its 6.
Step-by-step explanation:
