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xokatexo
 3 years ago
One number is 4 more than three times a smaller number. If twice the larger number is decreaased by three times the smaller number, the result is 32. Find the number. I know the answer but i need help solving it because i have a test tomorrow thanks!
xokatexo
 3 years ago
One number is 4 more than three times a smaller number. If twice the larger number is decreaased by three times the smaller number, the result is 32. Find the number. I know the answer but i need help solving it because i have a test tomorrow thanks!

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inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1Okay. One number is 4 more than 3 times a smaller number. Sounds like we have two numbers. So let's set x=larger number y=smaller number.

xokatexo
 3 years ago
Best ResponseYou've already chosen the best response.1i did x= the smaller 2x+4= the larger

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1Okay. Then x is the smaller, and 2x+4 is the larger.

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1Are you learning systems of equations? or just one variable?

xokatexo
 3 years ago
Best ResponseYou've already chosen the best response.1we learned system of equations last year

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1Okay. I'll straight up tell you that while it might be possible to solve this with just x as a variable, it will be much less confusing to do with x and y.

xokatexo
 3 years ago
Best ResponseYou've already chosen the best response.1okay so ill use x and y thankss

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1Alright. Now really the only reason I set x as the larger number is because it turned up first. y as the smaller number cause it turned up second.

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1We are looking for two equations that relate x and y. can you figure out the first?

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1mm. Close, but remember that x is the larger number. You should be getting 3y+4=x

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1One number is 4 more than three times a smaller number.

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1We have a number x that is 4 more than 3 times a smaller number.

xokatexo
 3 years ago
Best ResponseYou've already chosen the best response.1ok i got that but then whats the second?

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1and the smaller number is y. so we have x is 4 more than 3 times y. or, x=4+3y in other words 3y+4=x

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1If twice the larger number is decreaased by three times the smaller number, the result is 32.

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1Replace the larger number and smaller number to what we have set them to, x and y ;) Tell me what you get...

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1Yes. Good! Now we set up the system. 3y+4=x 2x3y=32

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1Can you show your work? that's not the right answer :S

xokatexo
 3 years ago
Best ResponseYou've already chosen the best response.1@inkyvoyd 2(3y+4)3y=32 6y+83y=32 3y+8=32 8 8  3y=32   3 3 y=10.66666666666666666666666666

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.13y+8=32 catch: 3y+8=24

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1yeah sorry, I made a mistake to. y=8 lol

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1http://www.wolframalpha.com/input/?i=3y%2B4%3Dx+and+2x3y%3D32
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