Answer:
1. x = 86
2. x = 31
3. x = 64
4. x = 29
Step-by-step explanation:
1. 2x + 8 = 180
 -8 -8
2x = 180 (divide both sides by 2 to get x by itself)
2. 3x - 3 = 90
 + 3 +3
3x = 93 (divide both sides by 3 to get x by itself. you divide because 3x is multiplying and you have to do the reverse operation) 
3. 2x -5 + x - 7 = 180 (you combine like-terms) 
3x -12 = 180
 +12 +12
3x = 192 (you divide by 3 on both sides)
4. x + 1 + x + 4 + x - 2 = 90 (combine like-terms)
3x + 3 = 90
 -3 -3
3x = 87 (divide both sides by 3)
 
        
             
        
        
        
Answer:
 Aria unui paralelogram 
Step-by-step explanation:
Folosind formula:
Aria unui paralelogram = (baza x înălțimea)
                                        = (3√2 x 2)
                                         
 Aria unui paralelogram 
 
        
             
        
        
        
Answer:
It's 3 (a + 11)
Step-by-step explanation:
I don't know if you said that the 3 was a negative but if you did then don't choose my answer.
 
        
                    
             
        
        
        
The correct option is: Option (C) 2Explanation:The slope formula is = m = 

Insert the values in the above formula:
m = 

Which is Option (C).