SOLUTION: the sum of two numbers is 42 one number is 3 less than 4 times the other number. what are the numbers?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: the sum of two numbers is 42 one number is 3 less than 4 times the other number. what are the numbers?      Log On


   

Question 736546:
the sum of two numbers is 42 one number is 3 less than 4 times the other number. what are the numbers?
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
X+Y=42
X=4Y-3
(4Y-3)+Y=42
5Y-3=42
5Y=42+3
5Y=45
Y=45/5
Y=9 ANS.
X=4*9-3
X=36-3
Y=33 ANS.
PROOF:
9+33=42
42=42