There are no common factors except 1
        
                    
             
        
        
        
First, you have to simplify the equation:
y+3 = 3(x+5)
y+3=3x+15
So you multiply what’s inside the brackets (x+5) by the factor (3). So 3•x=3x, 3•5=15. 
Then you rearrange the equation as necessary to convert it into standard form, which is Ax + By = C
        
             
        
        
        
T would be 72 because 2x2=4 and 4x18=72
        
                    
             
        
        
        
Answer: 57r + 42
Step by step explanation:
-3r - 6(-7 - 10r)
Distribute -6 through the parenthesis 
-3r + 42 + 60r
Collect the like terms
57r + 42
        
             
        
        
        
Answer:
f(5)=22
Step-by-step explanation:
since x=5 substitute 5 with x
f(5)=5(5)-3
multiply
f(5)=25-3
subtract
f(5)=22 :)