x is the 1st number, y is the 2nd number, z is the 3d number.
x+y+z = 2
x - y + z= -2
x - z = y +22 -----> x-y-z=22
x+y+z = 2
<u>x - y + z= -2</u>
2x + 2z =0
x + z = 0
x = -z
x - y + z= -2 and x = -z
-z - y + z = -2,  y =2
x-y-z=22 and x = -z, and y = 2 -----> x -2 +x = 22 --->2x = 24 ----> x = 12
x= -z -----> z = - 12
 
        
             
        
        
        
20 gallons
5 times 4 is 20 
Hope this helps and have a great day!
 
        
             
        
        
        
Answer:
a) cblo
2)$3.44
Step-by-step explanation:
4 cans and 3 loaves=11.67
8 cans and 1 loaf= 12.89.
Set up equation:
x=cans
y=loaves
 This is the answer for question A.
 This is the answer for question A.
Multiply eq1 by 2:

Subtract eq3 by eq2:

Substitute:

One can of soup and one loaf of bread=

So:

Hope this helps :D Please hit the crown if u can !!
 
        
             
        
        
        
Answer:
5
Step-by-step explanation:
There are 5 faces on a square pyramid