SOLUTION: A number, twice that number, and one-third of that number are added. The result is 20

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A number, twice that number, and one-third of that number are added. The result is 20      Log On


   



Question 266953: A number, twice that number, and one-third of that number are added. The result is 20
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
"A number" N
"twice that number"2N
"one-third of that number"%28N%2F3%29
"A number, twice that number, and one-third of that number are added. The result is 20" N%2B2N%2B%28N%2F3%29=20


N%2B2N%2B%28N%2F3%29=20
3N%283%29%2B%28N%2F3%29%283%29=20%283%29
9N%2BN=60
10N=60
10N%2F10=60%2F10
N=6


Checking
%286%29%2B2%286%29%2B%286%2F3%29=20
%286%29%2B%2812%29%2B%282%29=20
%2820%29=20