N/2 -7 = -6
add 7 to both sides;
n/2 -7+7 = -6+7
n/2 = 1
multiply both sides by 2 (  or divide by 1/2 ) in order to get n by itself.
n/2 * 2/1 = 1 * 2/1
n = 2
        
                    
             
        
        
        
Answer: a = 8
Step-by-step explanation:
Volume of a square based pyramid is given as
 .
 .
where a is the length of the side and h is the height.
Substituting into the formula , we have
 V = 
128 =  /3
 /3
384=  X 6
 X 6
Divide through by 6
384/6 = 
64 = 
Therefore :
a = 
a = 8
 
        
             
        
        
        
Answer:
x = -3
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
Step-by-step explanation:
<u>Step 1: Define equation</u>
5(x + 4) = -2(-4 - x) + 3
<u>Step 2: Solve for </u><em><u>x</u></em>
- Distribute:                                   5x + 20 = 8 + 2x + 3
- Combine like terms:                   5x + 20 = 2x + 11
- Subtract 2x on both sides:        3x + 20 = 11
- Subtract 20 on both sides:        3x = -9
- Divide 3 on both sides:              x = -3
<u>Step 3: Check</u>
<em>Plug in x to verify it's a solution.</em>
- Substitute:                    5(-3 + 4) = -2(-4 - -3) + 3
- Simplify:                        5(-3 + 4) = -2(-4 + 3) + 3
- Add:                              5(1) = -2(-1) + 3
- Multiply:                        5 = 2 + 3
- Add:                              5 = 5
Here we see that 5 does indeed equal 5. ∴ x = -3 is a solution of the equation.
And we have our final answer!
 
        
                    
             
        
        
        
Answer:
10000 + 8000 + 300 + 7
Step-by-step explanation:
18,307
= 10000 + 8000 + 300 + 7
 
        
             
        
        
        
Answer:
y=-5/3x-2
Step-by-step explanation: