Answer:

Step-by-step explanation:
Angles in a triangle add up to 180°


Angles in a straight line add up to 180°


 
        
                    
             
        
        
        
Answer: 5/3 
i hope that’s correct :)
        
                    
             
        
        
        
Answer:
15/16-3/4 is 3/16. (1/8 simplified)
Step-by-step explanation: Let the 4 turn into a 16. Multiply 4 by 4 to get 16. Then, multiply the numerator by the number you multiplied for the denominator. 3x4 is 12. Now, can subtract. 15-12=3. 
 
        
                    
             
        
        
        
If you want to solve for x
-5x-4=?
add 4 to both sides
-5x=4+?
divide both sides by -5
x=(4+?)/-5
x=-(4+?)/5