m∠AED = m∠AEB + m∠BEC + m∠CED 
179 = 105 + x + 40
x = 179 - (105+40) = 34
x = 34
 
        
             
        
        
        
-12. 3(-2)= -6 -6-6=-12 :)
        
             
        
        
        
By adding all the numbers and dividing by 7 ( the amount of numbers) you know that the answer will be about 166.3
        
                    
             
        
        
        
36j + j = 37j
Explanation.
You could translate this sum into a normal sebtence: I have 36 apples and add 1 apple more. 
The sum will then be 36 apples + apple = 37 apples.
Replacing the word (in this explanation 'apple') by a letter learns us 36a + a = 37a
Hence 36j + j = 37j
        
             
        
        
        
Answer:
x=10
Step-by-step explanation:
Make 2x the only variable on the left side of the equation. Do that by taking 3 and 5 to the left. Note: if you move/transpose any number the sign must change. 
2x = 18+5-3
2x=20
Divide both sides of the equation by 2 to make x the only variable left. 
x=10