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:2.634 in./s
Step-by-step explanation:
Given
Length (L)=18 in.
width (B)=12 in.
height(h)=4 in.
Volume of water is increasing at a rate of 569 
Volume of a box is given by=LBh
and 
as L&B are constant therefore
Answer:
(61. 8181..., ~)
Step-by-step explanation:
-11/5x<-136
x>680/11
x>61. 8181...
Answer:
4/14 is equivalent to 2/7
Step-by-step explanation:
mark me as brainliest ❤️
The resulting equation will be x + y = 4 and 4y =20
<h3>System of equation</h3>
GIven the system of equation given as:
x + y = 4
-3x + y = 8
If Megan multiplies the first equation by 3 then add the result to the second equation, the resulting equation will be:
3x + 3y = 12
-3x + y = 8
Adding both equation
3y + y = 12 + 8
4y = 20
Hence the resulting equation will be x + y = 4 and 4y =20
Learn more on the system of equation here: brainly.com/question/13729904
