Answer:
The answer is B:
x=3
y=14
Step-by-step explanation:
Answer:
8n-23
Step-by-step explanation:
a=-15 and d=8
so nth term=-15+(n-1)8
=8n-23
I think it is D, because the negative would turn positive and move to the right but im not 100% sure
I'll treat these like they're two seperate problems because how you set it up they're not together. If it's one whole problem please tell me and I'll solve it that way. :-)
First one: 3x+9+8x + 12
Collect like terms and simplify
(3x+8x)+(9+12)
11x+21
Second one: 2x + 6+x² + 6x + 9
Collect like terms and simplify

8x+15+
Hope this helps you, have a BLESSED and wonderful day, as well as a safe one!
-Cutiepatutie ☺❀❤