Answer:
25
Step-by-step explanation:
2x+2+5x+3=180 (angles on a straight line)
7x+5=180
7x=180-5
7x=175
x=25 (dividing both sides by 7)
 
        
             
        
        
        
Answer:
16
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
The solution set can be calculatedby the following steps; 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x=3
Step-by-step explanation:
3(2x+5)=4x+21
6x+15=4x+21
 -4x            -4x
2x+15= 21
      -15    -15
2x=6
2     2
<h2>x=3                          Hope that helped!!!!</h2>