you cant do that because they are not like terms
 
        
             
        
        
        
Answer: 3
Explanation: 
x + 7 = 5 x 2
you do 5(2) and get 10 
plug in 10 and the equation looks like:
x + 7 = 10
from there you would subtract 7 from 7 and 10 to isolate x and get your answer of: 
x = 3 :)
        
             
        
        
        
Straight
Never ending (You can tell this as there are arrows on the ends)
On a diagonal with a negative slope
 
        
             
        
        
        
From the given ordered pair representing Jacinda's progress, her speed is equal to 10 miles per hour. Letting x be the time it takes for Jacinda to catch up with Raj, the total distance Raj would travel is 
                            1.5 + 4.5x
and Jacinda's total distance is 10x. Mathematically,
                                1.5 + 4.5x = 10x 
The value of x from the equation is 0.27 hours. Therefore, Jacinda needs to run 2.7 miles to catch up with Raj.