Answer:
-7/3
Step-by-step explanation:
the answer is the negative reciprocal. 
 
        
             
        
        
        
Answer:
- 35  
Step-by-step explanation:
2(x - 7) = 3(x+7) 
2x - 14 = 3x + 21 
- 21 - 14 = 3x - 2x 
x = - 35  
Rechecking :
2(-35 - 7) = 3 (-35 +7) 
- 84 = - 84 
I hope im right!!! 
 
        
             
        
        
        
Answer:
The System of equation is  .
.
Step-by-step explanation:
Given:
Let 'x' be the number of questions worth 5 points.
Let 'y' be the number of questions worth 2 points
Total Number of Problems = 29
So the Total Number of Problems is equal to sum of the number of questions worth 5 points and the number of questions worth 2 points.
Framing in equation form we get;
 .
.
Also Given:
Test is of Total Points = 100
Now Total points in test is equal to sum of the number of questions worth 5 points multiplied by  and the number of questions worth 2 points multiplied by 2.
Framing in equation form we get;

Hence The System of Equations are  .
.