Answer:
The given equation 3x − 7 = 4 + 6 + 4x has one solution.
Step-by-step explanation:
 Given : Equation 3x − 7 = 4 + 6 + 4x
We have to find the number of solutions of the given equation.
Consider the given equation 3x − 7 = 4 + 6 + 4x
Simplify, we have,
3x − 7 = 10 + 4x
Now subtract 3x both side, we hvae,
-7 = 10 + 4x - 3x 
Simplify, we have,
- 7 = 10 + x
Subtract 10 both side, we have,
-7 - 10 = x 
x = - 17 
Thus, The given equation 3x − 7 = 4 + 6 + 4x has one solution.
 
        
                    
             
        
        
        
Answer:
4
Step-by-step explanation:
Because if you have 2 apples and add 2 apples to that, you'll have a total of 4.
 
        
                    
             
        
        
        
Which one question? there is multiple in there.
        
             
        
        
        
Answer:
99 students
Step-by-step explanation:
To get this answer, you need to add all of the numbers up because the 3rd graders and 4th graders are joining the 2nd graders. 27+43=70. 70+29=99. 
 
        
             
        
        
        
The answer is 
2. 2a+12 
Show work 
2a+7+2a+7+4+4= 4a+22
A+2+a+2+3+3 = 2a+10 
(4a+22)-(2a+10) = 2a+12