SOLUTION: One number is 18 more than another, and the sum of the smaller number and twice the larger number is 45. Find the two numbers. (Show the two variable equations used to solve it and

Algebra ->  Linear-equations -> SOLUTION: One number is 18 more than another, and the sum of the smaller number and twice the larger number is 45. Find the two numbers. (Show the two variable equations used to solve it and      Log On


   

Question 280493: One number is 18 more than another, and the sum of the smaller number and twice the larger number is 45. Find the two numbers. (Show the two variable equations used to solve it and then the solution)
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
let one number be x, the smaller one
and the other be y
x+18=y
x-y=-18--------------1
x+2y=45-------------2
subtract 2 from 1
-3y =-63
y=-63/-3
y=21
x=3