The answer is the number that 't' must be in order for the equation 
to be a true statement.
Here's how to find it:
Write                                             t + 8 = 15
Then subtract 8 from each side:  <em>  t      =  7</em>
        
                    
             
        
        
        
Answer:
<h2>z = 15</h2>
Step-by-step explanation:

<u>Cross multiply </u>
That's 

<u>Send 15 to the right side of the equation</u>

Divide both sides by 15

We have the final answer as
<h3>z = 15</h3>
Hope this helps you
 
        
             
        
        
        
We are asked to find the equivalent of the expression given:
(3m⁻² n)⁻³
-----------
6mn⁻²
Perform distribution of power using power rule such as shown below:
3⁻³ m⁻²*⁻³n⁻³
-----------------
6mn⁻²
Perform product and quotient rule such as shown below:
m⁶ n²
--------
3³ *6*m*n³
Simplify,
m⁵
--------
162n
The answer is m⁵/162n.
        
                    
             
        
        
        
Answer:
They each got $3.00
Step-by-step explanation:
7+x = 2(2+x)
7+x = 4 + 2x
-x = -3
x=3