Question 517956: one number is 5 more than another number.if the sum of the number is 285,find the number.
Answer by xkatiexprime(4)   (Show Source):
You can put this solution on YOUR website! oh gawd , word problems . . . BLECH , but , you're lucky you have an easy one .
SO .
*you need to start off with your 'let' statements .
let x be larger number
let y be smaller number
*now that we have two statements , you'll need two equations :
1. x + y = 285
2. x = y + 5
*now to solve . you can either solve by substitution or elimination . let's do substitution . . .
solve 2. for x
x = y + 5
sub x into 1.
x + y = 285
y + 5 + y = 285
2y = 285 - 5
2y = 280
y = 140
sub y into 2.
x = y + 5
x = 140 + 5
x = 145
therefore , one number is 140 and the other number is 145 .
long ? yes . hard ? not once you do it a few times . :)
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