35 + 52 + 3(x + 2) = 180 
87 + 3x + 6 = 180 ( add the like terms and use distributive property) 
93 + 3x = 180 
-93 -93 
3x = 87 
 ÷3 ÷3
x = 29 
( the sum of all triangle angles is 180)
        
                    
             
        
        
        
Step-by-step explanation:
3x-5=8x-60
55=5x
x=11
 
        
             
        
        
        
This would depend on what you are asking for. 
If you are adding the two numbers(which the word and is implying) you’re answer is 25 1/4.
You get this by finding a common denominator. In this case, that can be 4.
Turn 1/2 in to 2/4.
Next, you add 11 and 13 to get 24. 
Then, you’ll add 2/4 and 3/4. You will get 1 1/4
Add 24 and 1 1/4. You have your answer of 25 1/4
        
             
        
        
        
If the number of adult tickets are taken as x then the number of children’s tickets can be taken as (89 — x ) then we can set up the equation
4.10(x) + 2.70 (89 — x) = 331.30
4.10x + 240.3 — 2.70x = 331.30
1.4x = 331.30 — 240.30
1.4x = 91
X = 65
Therefore 65 adult tickets and 24 children tickets as 89 — 65 is 24
        
             
        
        
        
The easy answer: If, say, B is the zero matrix, i.e.

then
