To solve for x, you need to isolate/get the variable "x" by itself in the equation:
3x - 3(x + 1) = 3     Distribute/multiply -3 into (x + 1)
3x + (-3)x + (-3)1 = 3
3x - 3x + 1 = 3
1 = 3
Your answer is no solution because the variable "x" is canceled out and 1 ≠ 3
 
        
             
        
        
        
X+30+70=180
x+100=180. -100 both sides
x=80
|x=80° |
        
             
        
        
        
Answer:
the constant of proportionality is 0.2 and it is a proportional relationship
Step-by-step explanation:
2 divided by 10 is 0.2 
1 divided by 5 is 0.2 
they have the same answer so they are proportional 
since they have the answer 0.2 it 
is there constant of proportionality 
 
        
             
        
        
        
Answer:
16
Step-by-step explanation:
.8 x 20 =16
 
        
             
        
        
        
Answer:
A/5
Step-by-step explanation:
There are 2 people after 5 in the the 4| part and 3 under 6 in the 5| part.