Answer:
a-3b+4
Step-by-step explanation:
a-3b+4
just divide 2a-6b+8 with 2
 
        
             
        
        
        
Answer:
10). 5x + (7x + 6) = 90 
11). x = 7
Step-by-step explanation:
From the picture attached,
Sum of given angles measures 90°
Measures of the angles are (5x)° and (7x + 6)°
Therefore, equation to determine the values of x will be,
5x + (7x + 6) = 90 
By combining similar terms of the equation,
12x + 6 = 90
12x = 90 - 6
12x = 84
x = 
x = 7 
Therefore, by solving the equation value of x will be 7.
 
        
             
        
        
        
• Answer:
x = 2
• Step-by-step explanation:
AB = AC/2 = 16/2 = 8
AB = 2x + 4
8 = 2x + 4
2x = 8 - 4
2x = 4
x = 4 : 2
x = 2
 
        
             
        
        
        
Answer:
D
Step-by-step explanation: