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 ☺❀❤
Answer:
0.2
Step-by-step explanation:
you move 9x to make 6x-1=2-9x
then move the 1 to make 6x=3-9x
so this means that 15x=3
so x=0.2
Answer:
y = -9/4x + 16 1/4
Step-by-step explanation:
lmk if you want an explanation
Answer:
The model car is 10 inches long
Step-by-step explanation:
To solve this question, we use conversion of units
Feet to inches.
Each feet has 12 inches.
The car is 15ft long.
So the car has 15*12 = 180 inches.
.5 inches = 9 in.
Rule of three
.5 inches - 9 inches
x inches - 180 inches




The model car is 10 inches long
Answer:
23 degrees
Step-by-step explanation:
Supplementary means they add to 180. Therefore if you subtract this angle from 180, it will give you the other angle.
180 - 157 = 23