SOLUTION: I'm not sure how to solve (x-20)+(x-40)+x=180

Algebra ->  Equations -> SOLUTION: I'm not sure how to solve (x-20)+(x-40)+x=180      Log On


   

Question 174826: I'm not sure how to solve (x-20)+(x-40)+x=180
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

%28x-20%29%2B%28x-40%29%2Bx=180 Start with the given equation.


x-20%2Bx-40%2Bx=180 Remove the parenthesis.


3x-60=180 Combine like terms on the left side.


3x=180%2B60 Add 60 to both sides.


3x=240 Combine like terms on the right side.


x=%28240%29%2F%283%29 Divide both sides by 3 to isolate x.


x=80 Reduce.


----------------------------------------------------------------------

Answer:

So the answer is x=80