SOLUTION: hi, i need the step by step exact solution,thanks find two positive numbers if one is three times the other and their difference is 8.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: hi, i need the step by step exact solution,thanks find two positive numbers if one is three times the other and their difference is 8.      Log On


   



Question 149067This question is from textbook
: hi, i need the step by step exact solution,thanks
find two positive numbers if one is three times the other and their difference is 8.
This question is from textbook

Answer by mangopeeler07(462) About Me  (Show Source):
You can put this solution on YOUR website!
one positive number=x-----------------because you need to assign a variable to solve for
other positive number=3x-----------------because it is three times the other
difference=8

Therefore,
3x-x=8----------------------------------because their difference is 8

Combine like terms (the x's)
2x=8

Divide both sides by 2
x=4

one positive number=x
other positive number=3x

Plug in x
First number=(4)
Second number=3(4)

So,
First number=4
Second number=12