SOLUTION: I am trying to help my daugter with her homework, and I've forgotten the formula for the following type of question: 2/3 of a number + 13 = 71

Algebra ->  Signed-numbers -> SOLUTION: I am trying to help my daugter with her homework, and I've forgotten the formula for the following type of question: 2/3 of a number + 13 = 71      Log On


   

Question 382874: I am trying to help my daugter with her homework, and I've forgotten the formula for the following type of question:
2/3 of a number + 13 = 71
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let N be the number,
%282%2F3%29N%2B13=71
Subtract 13 from both sides.
%282%2F3%29N%2B13-13=71-13
%282%2F3%29N%2B0=58
%282%2F3%29N=58
Multiply both sides by (3/2).
%283%2F2%29%282%2F3%29N=%283%2F2%2958
%286%2F6%29N=87
%281%29N=87
highlight%28N=87%29