Answer: There are 33 girls in the class
Step-by-step explanation:
 
        
                    
             
        
        
        
1. Let's call the number of carter school: "x" and "y" the number of alternative school.  Then, you have that:
 - T<span>he number of charter schools is 4 less than twice the number of alternative schools.
</span> - T<span>here are 48 charter schools in the country.
 2. So, you have:
 x=2y-4  (i)
 x=48  (ii)
 3. Then, when you substitute x=48 into the equation (i), you obtain:
</span>
 x=2y-4
<span> 48=2y-4
 4. Now, you must clear "y, as below:
 48+4=2y
 2y=52
 y=52/2
 y=26
 </span><span>
 How many alternative schools are in the county?
</span><span>
 The answer is: There are 26 alternative schools.</span>
        
             
        
        
        
Hello!
You can expand the 4
4x + 8
the answer is 4x + 8
Hope this helps!
        
             
        
        
        
If he sold 25 boxes in all and he sold 7 today then he would of sold 25 - 7 boxes yesterday. Josh sold 18 boxes yesterday. 
Today = 7
Yesterday = 18
Total = 25
7 + x = 25, when x = Yesterdays sold boxes.
Hope this helps :)
 
        
                    
             
        
        
        




Use the identity:  and solve for
 and solve for  . You get:
. You get: 
Do the substitution on the left side to get:
