Answer:
It i s 6
Step-by-step explanation:
Very six
 
        
             
        
        
        
Answer:
I think the first is answer bcz 35+55=90 ..... 180-90=90
 
        
             
        
        
        
52 ft
The missing side is 5ft because 11-6 is the remaining side length. 
11+5+6+8+7+15=52
        
             
        
        
        
<h3>Solution :-</h3>
➩ 70 = 12 + 9x - 2 ( x + 6 )
➩ 70 = 12 + 9x - 2x - 12
➩ 70 = 0 + 7x
➩ 70 = 7x
Here we can use 2 methods 
Methods :-
- Trial and error method :- By adding,subtracting , multiplying or dividing the same variable or constant on LHS & RHS 
- Transposing :- by transposing a term from LHS to RHS or RHS to LHS
• Trial and error 
By dividing with 7 on both sides
➩ 70/7 = 7x/7
➩ x = 10
• Transposing 
By transposing 7 from RHS. to LHS 
➩ 70/7 = x
➩ x = 10
Hence , x = 10
 
        
        
        
Answer:
The answer is x= -16!
Step-by-step explanation:
-4(x-7)=36
-4x- 28= 36
      +28    +28
-4x= 64
/-4     /-4
x= -16
I hope this helps!
p.s. have any more questions? Post the question and comment the link below!
Ciao!
♥, Sadie