Answer:
4+  x = 3
x = 3
Step-by-step explanation:
4 +  x = 3 (subtract 4 from both sides)
x = 3 (subtract 4 from both sides)
 x = -1 (multiply both sides by 2)
x = -1 (multiply both sides by 2)
x = -2 
 
        
                    
             
        
        
        
2 solutions. This is because the parabola will cross the x axis twice. We know this because -5 means the vertex will be 5 units below the x axis. and the parabola opens upwards because the first coefficient is positive. Hope this helped :)
        
             
        
        
        
2/7. 
2/7 + 5/7 =1 Just add the numerator if the denominator is the same
        
                    
             
        
        
        
If the image does not open, just let me know 
 
        
        
        
Answer:
2 2/3 as an improper fraction is 8/3
8/3 × 1/4 = 2/3